diff --git a/app/static/js/highlight.js b/app/static/js/highlight.js
index c9c3a02..f0680af 100644
--- a/app/static/js/highlight.js
+++ b/app/static/js/highlight.js
@@ -1,4 +1,4 @@
-let isHighlight = localStorage.getItem('highlightChecked') !== 'false'; // default to true
+let isHighlight = true;
 
 function cancelBtnHandler() {
     cancelHighlighting();
@@ -25,7 +25,9 @@ function highLight() {
     let articleContent = document.getElementById("article").innerHTML; // innerHTML保留HTML标签来保持部分格式，且适配不同的浏览器
     let pickedWords = document.getElementById("selected-words");  // words picked to the text area
     let dictionaryWords = document.getElementById("selected-words2"); // words appearing in the user's new words list
-    let allWords = dictionaryWords === null ? pickedWords.value + " " : pickedWords.value + " " + dictionaryWords.value;
+    let allWords = dictionaryWords == null ? pickedWords.value + " " : pickedWords.value + " " + dictionaryWords.value;
+    highlightWords = document.getElementById("selected-words3");
+    allWords = highlightWords == null ? allWords : allWords + " " + highlightWords.value;
     const list = allWords.split(" "); // 将所有的生词放入一个list中
     let totalSet = new Set();
     for (let i = 0; i < list.length; ++i) {
@@ -39,16 +41,15 @@ function highLight() {
             }
             totalSet = new Set([...totalSet, ...matches]);
         }
-    }
+    } 
     // 删除所有的mark标签,防止标签发生嵌套
     articleContent = articleContent.replace(/<(mark)[^>]*>/gi, "");
     articleContent = articleContent.replace(/<(\/mark)[^>]*>/gi, "");
-    // 将文章中所有出现该单词word的地方改为："<span class='highlighted'>" + word + "</span>"。
+    // 将文章中所有出现该单词word的地方改为："<mark>" + word + "<mark>"。
     for (let word of totalSet) {
-        articleContent = articleContent.replace(new RegExp("\\b" + word + "\\b", "g"), "<span class='highlighted'>" + word + "</span>");
+        articleContent = articleContent.replace(new RegExp("\\b" + word + "\\b", "g"), "<mark>" + word + "</mark>");
     }
     document.getElementById("article").innerHTML = articleContent;
-
 }
 
 function cancelHighlighting() {
@@ -74,7 +75,6 @@ function toggleHighlighting() {
         isHighlight = true;
         highLight();
     }
-     localStorage.setItem('highlightChecked', isHighlight);
 }
 
 showBtnHandler();
\ No newline at end of file