diff --git a/internal/tui/app.go b/internal/tui/app.go
index 93a1270..2d8f6d8 100644
--- a/internal/tui/app.go
+++ b/internal/tui/app.go
@@ -68,9 +68,10 @@ func NewApp(cfg *config.Config, t *translator.Translator) *tea.Program {
 	ta := textarea.New()
 	ta.Placeholder = "输入要翻译的文本..."
 	ta.Focus()
-	ta.Prompt = "| "
+	ta.Prompt = ""
 	ta.SetWidth(50)
 	ta.SetHeight(5)
+	ta.ShowLineNumbers = false
 
 	return tea.NewProgram(model{
 		config:     cfg,
@@ -113,6 +114,10 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			m.errMsg = ""
 			return m, m.doTranslate(text, m.targetLang)
 
+		case tea.KeyCtrlJ:
+			m.textArea, cmd = m.textArea.Update(msg)
+			return m, cmd
+
 		case tea.KeyCtrlC:
 			return m, tea.Quit
 
diff --git a/taolun.md b/taolun.md
index bb9a180..807aab8 100644
--- a/taolun.md
+++ b/taolun.md
@@ -642,6 +642,9 @@ func (m model) doTranslate(text, toLang string) tea.Cmd {
 - 使用 `github.com/charmbracelet/bubbles/textarea`
 - textarea.SetWidth(50)、SetHeight(5) 设置尺寸
 - 移除底部固定快捷键提示，改为按需显示
+- 隐藏行号: `ShowLineNumbers = false`
+- 移除左侧提示符: `Prompt = ""`
+- Enter执行翻译，Ctrl+J换行
 
 **下一步**: 实现模块8: 弹出框组件