diff --git a/LunaTranslator/LunaTranslator/gui/edittext.py b/LunaTranslator/LunaTranslator/gui/edittext.py
index 788fd29d..b547eb04 100644
--- a/LunaTranslator/LunaTranslator/gui/edittext.py
+++ b/LunaTranslator/LunaTranslator/gui/edittext.py
@@ -1,6 +1,6 @@
 from PyQt5.QtCore import Qt
 from PyQt5.QtWidgets import (
-    QTextBrowser,
+    QPlainTextEdit,
     QAction,
     QMenu,
     QHBoxLayout,
@@ -32,7 +32,7 @@ class edittext(closeashidewindow):
     def setupUi(self):
         self.setWindowIcon(qtawesome.icon("fa.edit"))
 
-        self.textOutput = QTextBrowser(self)
+        self.textOutput = QPlainTextEdit(self)
 
         self.textOutput.setContextMenuPolicy(Qt.CustomContextMenu)
 
@@ -42,7 +42,6 @@ class edittext(closeashidewindow):
 
         self.textOutput.setUndoRedoEnabled(True)
         self.textOutput.setReadOnly(False)
-        self.textOutput.setObjectName("textOutput")
 
         qv = QHBoxLayout()
         w = QWidget()
diff --git a/LunaTranslator/LunaTranslator/gui/inputdialog.py b/LunaTranslator/LunaTranslator/gui/inputdialog.py
index ffa20760..58d17b61 100644
--- a/LunaTranslator/LunaTranslator/gui/inputdialog.py
+++ b/LunaTranslator/LunaTranslator/gui/inputdialog.py
@@ -419,10 +419,6 @@ class postconfigdialog_(QDialog):
         lb.setText(_TR(key))
         formLayout.addWidget(lb)
 
-        # lines=QTextEdit(self)
-        # lines.setPlainText('\n'.join(configdict[key]))
-        # lines.textChanged.connect(lambda   :configdict.__setitem__(key,lines.toPlainText().split('\n')))
-        # formLayout.addWidget(lines)
         model = QStandardItemModel(len(configdict[key]), 1, self)
         row = 0
 
diff --git a/LunaTranslator/LunaTranslator/gui/settingpage7.py b/LunaTranslator/LunaTranslator/gui/settingpage7.py
index fedc2579..b10353a1 100644
--- a/LunaTranslator/LunaTranslator/gui/settingpage7.py
+++ b/LunaTranslator/LunaTranslator/gui/settingpage7.py
@@ -2,7 +2,7 @@ import functools
 
 from PyQt5.QtWidgets import (
     QHBoxLayout,
-    QTextEdit,
+    QPlainTextEdit,
     QHBoxLayout,
     QWidget,
     QMenu,
@@ -79,8 +79,8 @@ def setTab7(self):
 def getcomparelayout(self):
 
     layout = QHBoxLayout()
-    fromtext = QTextEdit()
-    totext = QTextEdit()
+    fromtext =QPlainTextEdit()
+    totext = QPlainTextEdit()
     solvebutton = getcolorbutton(
         globalconfig,
         "",
diff --git a/LunaTranslator/LunaTranslator/gui/showword.py b/LunaTranslator/LunaTranslator/gui/showword.py
index 047f66c7..9955323b 100644
--- a/LunaTranslator/LunaTranslator/gui/showword.py
+++ b/LunaTranslator/LunaTranslator/gui/showword.py
@@ -8,7 +8,6 @@ from PyQt5.QtWidgets import (
     QFormLayout,
     QSizePolicy,
     QPushButton,
-    QTextEdit,
     QTabWidget,
     QFileDialog,
     QTabBar,
@@ -459,7 +458,7 @@ class AnkiWindow(QWidget):
         self.viewimagelabel = QLabel()
         self.editpath.textChanged.connect(self.wrappedpixmap)
         self.example = QPlainTextEdit()
-        self.remarks = QTextEdit()
+        self.remarks = QPlainTextEdit()
         recordbtn1 = statusbutton(icons=["fa.microphone", "fa.stop"], colors=[""])
         recordbtn1.statuschanged1.connect(
             functools.partial(self.startorendrecord, "1", self.audiopath)
diff --git a/LunaTranslator/LunaTranslator/gui/textbrowser.py b/LunaTranslator/LunaTranslator/gui/textbrowser.py
index 4f7fe920..3e8d9ccf 100644
--- a/LunaTranslator/LunaTranslator/gui/textbrowser.py
+++ b/LunaTranslator/LunaTranslator/gui/textbrowser.py
@@ -247,7 +247,6 @@ class Textbrowser:
         self.jiaming_y_delta = 0
         self.setselectable()
         self.blockcount = 0
-        self.needdouble = False
         self.iteryinyinglabelsave = {}
 
     def setselectable(self):
@@ -331,10 +330,6 @@ class Textbrowser:
         self.textbrowser.insertPlainText(text)
 
     def deletebetween(self, p1, p2):
-        if self.needdouble:
-            self.textcursorback.setPosition(p1, QTextCursor.MoveAnchor)
-            self.textcursorback.setPosition(p2, QTextCursor.KeepAnchor)
-            self.textcursorback.removeSelectedText()
         self.textcursor.setPosition(p1, QTextCursor.MoveAnchor)
         self.textcursor.setPosition(p2, QTextCursor.KeepAnchor)
         self.textcursor.removeSelectedText()
diff --git a/LunaTranslator/LunaTranslator/gui/transhist.py b/LunaTranslator/LunaTranslator/gui/transhist.py
index 4ba29f55..2cd05108 100644
--- a/LunaTranslator/LunaTranslator/gui/transhist.py
+++ b/LunaTranslator/LunaTranslator/gui/transhist.py
@@ -1,5 +1,4 @@
-from PyQt5.QtCore import Qt
-from PyQt5.QtWidgets import QTabWidget, QTextBrowser, QAction, QMenu, QFileDialog
+from PyQt5.QtWidgets import QPlainTextEdit, QAction, QMenu, QFileDialog
 from PyQt5.QtCore import Qt, pyqtSignal
 import qtawesome, functools, winsharedutils
 from gui.usefulwidget import closeashidewindow
@@ -26,14 +25,13 @@ class transhist(closeashidewindow):
         self.setWindowIcon(qtawesome.icon("fa.rotate-left"))
 
         def gettb(_type):
-            textOutput = QTextBrowser()
+            textOutput = QPlainTextEdit()
             textOutput.setContextMenuPolicy(Qt.CustomContextMenu)
             textOutput.customContextMenuRequested.connect(
                 functools.partial(self.showmenu, textOutput, _type)
             )
             textOutput.setUndoRedoEnabled(False)
             textOutput.setReadOnly(True)
-            textOutput.setObjectName("textOutput")
             return textOutput
 
         self.textOutput = gettb(1)
@@ -76,14 +74,14 @@ class transhist(closeashidewindow):
 
     def getnewsentence(self, sentence):
 
-        sentence = "<hr>" if globalconfig["hist_split"] else "\n" + sentence
+        sentence = "\n" + sentence
         if self.hiderawflag:
             sentence = ""
-        self.textOutput.append(sentence)
+        self.textOutput.appendPlainText(sentence)
 
     def getnewtrans(self, api, sentence):
         if self.hideapiflag:
             res = sentence
         else:
             res = api + "  " + sentence
-        self.textOutput.append(res)
+        self.textOutput.appendPlainText(res)
diff --git a/LunaTranslator/files/defaultconfig/config.json b/LunaTranslator/files/defaultconfig/config.json
index 377f0449..89d33028 100644
--- a/LunaTranslator/files/defaultconfig/config.json
+++ b/LunaTranslator/files/defaultconfig/config.json
@@ -68,7 +68,6 @@
         "arabic_reshaper": false
     },
     "uselongtermcache": false,
-    "hist_split": false,
     "fixedheight": false,
     "showintab": true,
     "remove_useless_hook": false,