diff --git a/Notesmaster/app/src/main/java/net/micode/notes/ui/NotesListItem.java b/Notesmaster/app/src/main/java/net/micode/notes/ui/NotesListItem.java
index 1221e80..2664d05 100644
--- a/Notesmaster/app/src/main/java/net/micode/notes/ui/NotesListItem.java
+++ b/Notesmaster/app/src/main/java/net/micode/notes/ui/NotesListItem.java
@@ -49,6 +49,7 @@ public class NotesListItem extends LinearLayout {
     }
 
     public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
+        // 根据选择模式和笔记类型决定是否显示复选框
         if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
             mCheckBox.setVisibility(View.VISIBLE);
             mCheckBox.setChecked(checked);
@@ -56,36 +57,49 @@ public class NotesListItem extends LinearLayout {
             mCheckBox.setVisibility(View.GONE);
         }
 
+        // 保存笔记数据引用
         mItemData = data;
+
+        // 处理通话记录文件夹
         if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
             mCallName.setVisibility(View.GONE);
             mAlert.setVisibility(View.VISIBLE);
             mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
+            // 设置文件夹名称和包含的文件数量
             mTitle.setText(context.getString(R.string.call_record_folder_name)
                     + context.getString(R.string.format_folder_files_count, data.getNotesCount()));
             mAlert.setImageResource(R.drawable.call_record);
-        } else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
+        }
+        // 处理通话记录子项
+        else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
             mCallName.setVisibility(View.VISIBLE);
             mCallName.setText(data.getCallName());
             mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem);
             mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
+            // 根据是否有提醒设置提醒图标
             if (data.hasAlert()) {
                 mAlert.setImageResource(R.drawable.clock);
                 mAlert.setVisibility(View.VISIBLE);
             } else {
                 mAlert.setVisibility(View.GONE);
             }
-        } else {
+        }
+        // 处理普通笔记和文件夹
+        else {
             mCallName.setVisibility(View.GONE);
             mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
 
+            // 处理文件夹
             if (data.getType() == Notes.TYPE_FOLDER) {
                 mTitle.setText(data.getSnippet()
                         + context.getString(R.string.format_folder_files_count,
-                                data.getNotesCount()));
+                        data.getNotesCount()));
                 mAlert.setVisibility(View.GONE);
-            } else {
+            }
+            // 处理普通笔记
+            else {
                 mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
+                // 根据是否有提醒设置提醒图标
                 if (data.hasAlert()) {
                     mAlert.setImageResource(R.drawable.clock);
                     mAlert.setVisibility(View.VISIBLE);
@@ -94,11 +108,13 @@ public class NotesListItem extends LinearLayout {
                 }
             }
         }
+
+        // 设置修改时间，使用相对时间格式（如"1小时前"）
         mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
 
+        // 根据笔记状态设置背景
         setBackground(data);
     }
-
     private void setBackground(NoteItemData data) {
         int id = data.getBgColorId();
         if (data.getType() == Notes.TYPE_NOTE) {