diff --git a/lua/Trans/core/action.lua b/lua/Trans/core/action.lua
index f3617d8..d3ad71b 100644
--- a/lua/Trans/core/action.lua
+++ b/lua/Trans/core/action.lua
@@ -1,26 +1,25 @@
-local function feedkey(mode, key)
-    vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, false, true), mode, false)
+-- local util = require('Trans.util')
+local bufnr = require('Trans.core.window').bufnr
+-- local winid = require('Trans.core.window').id
+local api = vim.api
+local function buf_feedkey(key)
+    if bufnr and api.nvim_buf_is_valid(bufnr) then
+        api.nvim_buf_call(bufnr, function()
+            vim.cmd([[normal! ]] .. key)
+        end)
+        return true
+    else
+        return false
+    end
 end
 
-local util = require('Trans.util')
-
 local M = {
-    pageup = function(bufnr, winid)
-        local top = math.min(10, util.get_height(bufnr, winid) - vim.api.nvim_win_get_height(winid) + 1)
-        return function()
-            vim.api.nvim_buf_call(bufnr, function()
-                -- TODO :
-                vim.cmd([[normal!]] .. top .. 'zt')
-                -- vim.cmd([[normal!]] .. 'G')
-                -- vim.api.nvim_command("noautocmd silent! normal! " .. vim.wo.scroll .. "zt")
-                -- vim.cmd([[do WinScrolled]])
-            end)
-        end
+    pageup = function()
+        return buf_feedkey('gg')
     end,
     pagedown = function()
-        feedkey('n', '<C-d>')
+        return buf_feedkey('G')
     end
 }
 
-
 return M
diff --git a/lua/Trans/core/content.lua b/lua/Trans/core/content.lua
index 8d8b797..1abdce3 100644
--- a/lua/Trans/core/content.lua
+++ b/lua/Trans/core/content.lua
@@ -1,9 +1,8 @@
 local M = {}
 M.__index = M
 
+
 M.get_width = vim.fn.strwidth
--- local get_width = vim.fn.strwidth
--- local get_width = vim.api.nvim_strwidth
 
 ---@alias block table add_hl(key, hl_name)
 ---返回分配的块状区域, e_col 设置为-1则为末尾
@@ -52,32 +51,31 @@ end
 
 function M:alloc_items()
     local items = {}
-    local len = 0
-    local size = 0
+    local width = 0 -- 所有item的总width
+    local size  = 0 -- item数目
     return {
         add_item = function(item, highlight)
             size = size + 1
             local wid = self.get_width(item)
             items[size] = { item, highlight }
-            len = len + wid
+            width = width + wid
         end,
 
         load = function()
             self.len = self.len + 1
-            local space = math.floor((self.width - len) / (size - 1))
+            local space = math.floor((self.width - width) / (size - 1))
             assert(space > 0)
             local interval = (' '):rep(space)
             local value = ''
             local function load_item(index)
                 if items[index][2] then
-                    local _start = #value
-                    local _end = _start + #items[index][1]
                     table.insert(self.highlights[self.len], {
                         name = items[index][2],
-                        _start = _start,
-                        _end = _end,
+                        _start = #value,
+                        _end = #value + #items[index][1],
                     })
                 end
+
                 value = value .. items[index][1]
             end
 
@@ -162,4 +160,8 @@ function M:new(width)
     return setmetatable(new_content, M)
 end
 
+function M:clear()
+    require('table.clear')(self)
+end
+
 return M
diff --git a/lua/Trans/core/handler.lua b/lua/Trans/core/handler.lua
index 15b480b..18951bd 100644
--- a/lua/Trans/core/handler.lua
+++ b/lua/Trans/core/handler.lua
@@ -127,7 +127,6 @@ M.hover = {
         content:addline('')
     end,
 
-
     definition = function(result, content)
         if exist(result.definition) then
             expl(content, '英文注释')
diff --git a/lua/Trans/core/init.lua b/lua/Trans/core/init.lua
index 20b3ba1..848f69d 100644
--- a/lua/Trans/core/init.lua
+++ b/lua/Trans/core/init.lua
@@ -24,16 +24,17 @@ M.translate = function(method, view)
     method = method or vim.api.nvim_get_mode().mode
     view = view or conf.view[method]
     local word
-    if method == 'input' then
+    if method == 'v' then
         ---@diagnostic disable-next-line: param-type-mismatch
         word = vim.fn.input('请输入您要查询的单词: ') -- TODO Use Telescope with fuzzy finder
     elseif method == 'n' then
         word = vim.fn.expand('<cword>')
-    elseif method == 'v' then
+    elseif method == 'input' then
         word = get_select()
+    elseif method == 'last' then
+        return win.show()
     end
 
-
     win.init(view)
     local result = api.query('offline', word)
     local content = c:new(win.width)
diff --git a/lua/Trans/core/window.lua b/lua/Trans/core/window.lua
index 5580f54..f4be1c8 100644
--- a/lua/Trans/core/window.lua
+++ b/lua/Trans/core/window.lua
@@ -1,12 +1,11 @@
-local M      = {}
-local api    = vim.api
-local conf   = require('Trans').conf
-local action = require('Trans.core.action')
-local util   = require('Trans.util')
+local M    = {}
+local api  = vim.api
+local conf = require('Trans').conf
+local util = require('Trans.util')
 
 M.id    = 0
-M.bufnr = 0
 M.ns    = api.nvim_create_namespace('Trans')
+M.bufnr = api.nvim_create_buf(false, true)
 
 
 function M.init(view)
@@ -15,19 +14,19 @@ function M.init(view)
     }
 
     M.view = view
-    M.float = view == 'float'
+    local is_float = view == 'float'
     M.height = conf.window[view].height
     M.width = conf.window[view].width
 
     local opts = {
-        relative  = M.float and 'editor' or 'cursor',
+        relative  = is_float and 'editor' or 'cursor',
         width     = M.width,
         height    = M.height,
         style     = 'minimal',
         border    = conf.window.border,
         title     = {
             { '', 'TransTitleRound' },
-            { 'Trans', 'TransTitle' },
+            { conf.icon.title .. ' Trans', 'TransTitle' },
             { '', 'TransTitleRound' },
         },
         title_pos = 'center',
@@ -35,7 +34,7 @@ function M.init(view)
         zindex    = 100,
     }
 
-    if M.float then
+    if is_float then
         opts.row = math.floor((vim.o.lines - M.height) / 2)
         opts.col = math.floor((vim.o.columns - M.width) / 2)
     else
@@ -43,13 +42,13 @@ function M.init(view)
         opts.col = 2
     end
 
-    M.bufnr = api.nvim_create_buf(false, true)
     M.id = api.nvim_open_win(M.bufnr, M.float, opts)
 end
 
 M.draw = function(content)
-    api.nvim_buf_set_lines(M.bufnr, 0, -1, false, content.lines)
+    api.nvim_buf_set_option(M.bufnr, 'modifiable', true)
 
+    api.nvim_buf_set_lines(M.bufnr, 0, -1, false, content.lines)
     if content.highlights then
         for l, _hl in pairs(content.highlights) do
             for _, hl in ipairs(_hl) do
@@ -57,39 +56,34 @@ M.draw = function(content)
             end
         end
     end
-
-    api.nvim_buf_set_option(M.bufnr, 'modifiable', false)
-    api.nvim_buf_set_option(M.bufnr, 'filetype', 'Trans')
-    api.nvim_win_set_option(M.id, 'wrap', not M.float)
-    api.nvim_win_set_option(M.id, 'winhl', ('Normal:Trans%sWin,FloatBorder:Trans%sBorder'):format(M.view, M.view))
-
-    local height = util.get_height(M.bufnr, M.id)
-    if M.height > height then
-        api.nvim_win_set_height(M.id, height)
-    end
-
-    if height == 1 then
+    M.load_opts()
+    if content.len == 1 then
         api.nvim_win_set_width(M.id, content.get_width(content.lines[1]))
     end
-
-
-    if M.float then
-        vim.keymap.set('n', 'q', function()
-            if api.nvim_win_is_valid(M.id) then
-                api.nvim_win_close(M.id, true)
-            end
-        end, { buffer = M.bufnr, silent = true })
-
-    else
-        -- TODO : set keymaps for window
-        M.auto_close()
-    end
-
-    M['load_' .. M.view .. '_keymap']()
 end
 
 
-M.auto_close = function()
+M.load_opts = function()
+    api.nvim_buf_set_option(M.bufnr, 'modifiable', false)
+    api.nvim_buf_set_option(M.bufnr, 'filetype', 'Trans')
+    api.nvim_win_set_option(M.id, 'winhl', ('Normal:Trans%sWin,FloatBorder:Trans%sBorder'):format(M.view, M.view))
+    local height = util.get_height(M.bufnr, M.id)
+    M['load_' .. M.view .. '_opts']()
+
+    if M.height > height then
+        api.nvim_win_set_height(M.id, height)
+    end
+end
+
+
+M.load_hover_opts = function()
+    local keymap = conf.keymap[M.view]
+    local action = require('Trans.core.action')
+
+    for act, key in pairs(keymap) do
+        vim.keymap.set('n', key, action[act])
+    end
+
     api.nvim_create_autocmd(
         { 'InsertEnter', 'CursorMoved', 'BufLeave', }, {
         buffer = 0,
@@ -100,15 +94,22 @@ M.auto_close = function()
             end
         end,
     })
+    api.nvim_win_set_option(M.id, 'wrap', not M.float)
+end
+
+M.load_float_opts = function()
+    vim.keymap.set('n', 'q', function()
+        if api.nvim_win_is_valid(M.id) then
+            api.nvim_win_close(M.id, true)
+        end
+    end, { buffer = M.bufnr, silent = true })
 
 end
 
 
-M.load_hover_keymap = function()
-    local keymap = conf.keymap[M.view]
-    for act, key in pairs(keymap) do
-        vim.keymap.set('n', key, action[act](M.bufnr, M.id))
-    end
+M.show = function()
+    M.init(M.view or 'float')
+    M.load_opts()
 end
 
 
diff --git a/lua/Trans/init.lua b/lua/Trans/init.lua
index ec2966f..ee0e2ab 100644
--- a/lua/Trans/init.lua
+++ b/lua/Trans/init.lua
@@ -2,7 +2,7 @@ local M = {}
 
 M.conf = {
     view = {
-        input = 'hover',
+        input = 'float',
         n = 'hover',
         v = 'hover',
     },
@@ -10,7 +10,7 @@ M.conf = {
         border = 'rounded',
         hover = {
             width = 36,
-            height = 30,
+            height = 26,
         },
         float = {
             width = 0.8,
@@ -34,14 +34,15 @@ M.conf = {
         -- },
     },
     icon = {
+        title = ' ',
         star = '',
-        notfound = '',
-        yes = '',
-        no = ''
+        -- notfound = '',
+        -- yes = '',
+        -- no = ''
         -- star = '⭐',
-        -- notfound = '❔',
-        -- yes = '✔️',
-        -- no = '❌'
+        notfound = '❔',
+        yes = '✔️',
+        no = '❌'
     },
     db_path = '$HOME/.vim/dict/ultimate.db',
     -- TODO :
@@ -52,8 +53,8 @@ M.conf = {
     keymap = {
         -- TODO
         hover = {
-            pageup = ']]',
-            -- pagedown = '<C-d>',
+            pageup = '[[',
+            pagedown = ']]',
         },
     },
     -- history = {
diff --git a/lua/Trans/setup.lua b/lua/Trans/setup.lua
index f74c45e..a95fc31 100644
--- a/lua/Trans/setup.lua
+++ b/lua/Trans/setup.lua
@@ -12,6 +12,10 @@ vim.api.nvim_create_user_command('TranslateInput', function()
     require("Trans").translate('input')
 end, { desc = '  搜索翻译' })
 
+vim.api.nvim_create_user_command('TranslateLast', function()
+    require("Trans").translate('last')
+end, { desc = '  显示上一次查询的内容' })
+
 
 local highlights = {
     TransWord = {
@@ -59,11 +63,6 @@ local highlights = {
     },
 }
 
--- TODO
--- vim.api.nvim_create_user_command('TranslateHistory', require("Trans.core").query_input, {
---     desc = '翻译输入的单词',
--- })
-
 for highlight, opt in pairs(highlights) do
     vim.api.nvim_set_hl(0, highlight, opt)
 end
diff --git a/lua/Trans/util/test/test.lua b/lua/Trans/util/test/test.lua
index fd1be57..8d5e8ff 100644
--- a/lua/Trans/util/test/test.lua
+++ b/lua/Trans/util/test/test.lua
@@ -1,24 +1,13 @@
 -- 记录开始时间
 local starttime = os.clock(); --> os.clock()用法
 
-local function pw(str)
-    -- local res = vim.fn.strdisplaywidth(str)
-    local res = vim.fn.strwidth(str)
-    print(res)
+local str = 'test'
+local len = #str
+
+for i = 1, 100000000 do
+    local size = len
 end
 
-pw('n. either extremity of something that has length')
-pw('n.the point in time at which something ends')
-pw('n.the concluding parts of an event or occurrence')
-pw('n.a final part or section')
--- 48
--- 43
--- 48
--- 25
-
-
-
-
 -- 记录结束时间
 local endtime = os.clock(); --> os.clock()用法
 print(string.format("end time   : %.4f", endtime));