diff --git a/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java b/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java
index a8c5a31..779ca0f 100644
--- a/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java
+++ b/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java
@@ -28,7 +28,7 @@ import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.NoteColumns;
 
 /**
- * 闹钟传回信息接收者
+ * 闹钟传回的初始化信息接收者
  * 在设置闹钟之后该活动类会接受来自闹钟系统传回的消息并进行相关处理
  */
 public class AlarmInitReceiver extends BroadcastReceiver {
diff --git a/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java b/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java
index 709b3fe..27cefef 100644
--- a/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java
+++ b/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java
@@ -22,6 +22,10 @@ import android.content.Intent;
 
 import net.micode.notes.ui.activities.AlarmAlertActivity;
 
+/**
+ * 闹钟广播消息的接收者
+ * 根据消息内容发起 Intent 调用
+ */
 public class AlarmReceiver extends BroadcastReceiver {
     @Override
     public void onReceive(Context context, Intent intent) {