diff --git a/lua/Trans/conf.lua b/lua/Trans/conf.lua
index 8d4238f..12ca060 100644
--- a/lua/Trans/conf.lua
+++ b/lua/Trans/conf.lua
@@ -12,7 +12,7 @@ return {
         exchange = true,
         Trans_en = true,
         Trans_zh = true,
-        wrap = false,
+        wrap = true,
     },
     view = {
         -- TODO: style: buffer | cursor | window
@@ -25,7 +25,8 @@ return {
         star = '⭐',
         isOxford = '✔',
         notOxford = ''
-    }
+    },
+    auto_close = true,
     -- TODO: async process
     -- async = false,
 
diff --git a/lua/Trans/database.lua b/lua/Trans/database.lua
index 6135418..092e451 100644
--- a/lua/Trans/database.lua
+++ b/lua/Trans/database.lua
@@ -1,5 +1,4 @@
 local M = {}
--- local db = require('Trans').db
 local dict = require("Trans").dict
 
 function M.query(arg)
diff --git a/lua/Trans/display.lua b/lua/Trans/display.lua
index 5a65d5d..a880fc1 100644
--- a/lua/Trans/display.lua
+++ b/lua/Trans/display.lua
@@ -1,12 +1,13 @@
 -- local conf = require("Trans").conf
 local M = {}
 
-local display = require("Trans.conf").display
-local icon = require("Trans.conf").icon
+local display = require("Trans").conf.display
+local icon = require("Trans").conf.icon
 
 
 local buf = vim.api.nvim_create_buf(false, true)
 vim.api.nvim_buf_set_option(buf, 'filetype', 'Trans')
+local win = 0
 
 
 -- {
@@ -25,7 +26,7 @@ vim.api.nvim_buf_set_option(buf, 'filetype', 'Trans')
 --  }
 
 local function show_win(width, height)
-    local win = vim.api.nvim_open_win(buf, false, {
+    win = vim.api.nvim_open_win(buf, false, {
         relative = 'cursor',
         title = 'Trans',
         title_pos = 'center',
@@ -141,4 +142,11 @@ function M.toggle()
     -- TODO: wrap some function
 end
 
+function M.close_win()
+    if win > 0 then
+       vim.api.nvim_win_close(win, true) 
+        win = 0
+    end
+end
+
 return M
diff --git a/lua/Trans/init.lua b/lua/Trans/init.lua
index 9efde8c..2becf6d 100644
--- a/lua/Trans/init.lua
+++ b/lua/Trans/init.lua
@@ -15,8 +15,5 @@ end
 
 M.db = require("sqlite.db")
 M.dict = M.db:open(M.conf.db_path)
-M.query = require("Trans.display").query
-M.query_cursor = require("Trans.display").query_cursor
-
 
 return M
diff --git a/lua/Trans/setup.lua b/lua/Trans/setup.lua
index 1b65e67..2bfdabd 100644
--- a/lua/Trans/setup.lua
+++ b/lua/Trans/setup.lua
@@ -1,7 +1,11 @@
 local db = require("Trans").db
 -- local conf = require("Trans").conf
 
-local group = vim.api.nvim_create_augroup('closedb', { clear = true })
+
+vim.api.nvim_create_user_command('TranslateCurosorWord', require("Trans.display").query_cursor, {})
+
+
+local group = vim.api.nvim_create_augroup("Trans", { clear = true })
 vim.api.nvim_create_autocmd('VimLeave', {
     group = group,
     pattern = '*',
@@ -11,8 +15,13 @@ vim.api.nvim_create_autocmd('VimLeave', {
         end
     end,
 })
-
-vim.api.nvim_create_user_command('TranslateCurosorWord', require("Trans").query_cursor, {})
-
 -- TODO: set command to close preview window automatically
-
+local auto_close = require("Trans.conf").auto_close
+if auto_close then
+    vim.api.nvim_create_autocmd(
+        { 'InsertEnter', 'CursorMoved', 'BufLeave',  }, {
+        group = group,
+        pattern = '*',
+        callback = require('Trans.display').close_win
+    })
+end