diff --git a/src/pages/pc/article/BatchEditArticlePage.vue b/src/pages/pc/article/BatchEditArticlePage.vue
index fedcd2a2..b2ac9d05 100644
--- a/src/pages/pc/article/BatchEditArticlePage.vue
+++ b/src/pages/pc/article/BatchEditArticlePage.vue
@@ -16,7 +16,7 @@ import Toast from '@/pages/pc/components/base/toast/Toast.ts'
 import {getDefaultArticle} from "@/types/func.ts";
 import BackIcon from "@/pages/pc/components/BackIcon.vue";
 
-const emit = defineEmits<{
+defineEmits<{
   importData: [val: Event]
   exportData: [val: string]
 }>()
diff --git a/src/pages/pc/article/StudyArticle.vue b/src/pages/pc/article/StudyArticle.vue
index 826735d9..1b1282a0 100644
--- a/src/pages/pc/article/StudyArticle.vue
+++ b/src/pages/pc/article/StudyArticle.vue
@@ -335,7 +335,18 @@ const {playSentenceAudio} = usePlaySentenceAudio()
                 <div class="name">时间</div>
               </div>
               <div class="row">
-                <div class="num">{{ statisticsStore.total }}</div>
+                <div class="num center gap-1">
+                  {{ statisticsStore.total }}
+                  <Tooltip>
+                    <IconFluentQuestionCircle20Regular width="18"/>
+                    <template #reference>
+                      <div>
+                        统计词数{{ settingStore.ignoreSimpleWord ? '不包含' : '包含' }}简单词，不包含已掌握
+                        <div>简单词可在设置 -> 练习设置 -> 简单词过滤中修改</div>
+                      </div>
+                    </template>
+                  </Tooltip>
+                </div>
                 <div class="line"></div>
                 <div class="name">单词总数</div>
               </div>
diff --git a/src/pages/pc/article/components/TypingArticle.vue b/src/pages/pc/article/components/TypingArticle.vue
index 0649b438..8a5b265c 100644
--- a/src/pages/pc/article/components/TypingArticle.vue
+++ b/src/pages/pc/article/components/TypingArticle.vue
@@ -271,8 +271,47 @@ function del() {
   if (wrong) {
     wrong = ''
   } else {
-    input = input.slice(0, -1)
+    if (isEnd) return;
+    if (isSpace) {
+      isSpace = false
+    }
+    let endSentence = false
+    let endWord = false
+    let endString = false
+    if (stringIndex === 0) {
+      if (wordIndex === 0) {
+        if (sentenceIndex === 0) {
+          if (sectionIndex === 0) {
+            return
+          } else {
+            endSentence = endString = endWord = true
+            sectionIndex--
+          }
+        } else {
+          endString = endWord = true
+          sentenceIndex--
+        }
+      } else {
+        endString = true
+        wordIndex--
+      }
+    } else stringIndex--
+    let currentSection = props.article.sections[sectionIndex]
+    if (endSentence) sentenceIndex = currentSection.length - 1
+    let currentSentence = currentSection[sentenceIndex]
+    if (endWord) wordIndex = currentSentence.words.length - 1
+    let currentWord: ArticleWord = currentSentence.words[wordIndex]
+    if (endString) {
+      if (currentWord.nextSpace) {
+        isSpace = true
+        stringIndex = currentWord.word.length
+      }else {
+        stringIndex = currentWord.word.length - 1
+      }
+    }
+    input = currentWord.word.slice(0, stringIndex)
   }
+  checkCursorPosition()
 }
 
 function indexWord(word: ArticleWord) {