diff --git a/ContentGrabbingJi-Event/src/main/java/net/lamgc/cgj/bot/event/Cancelable.java b/ContentGrabbingJi-Event/src/main/java/net/lamgc/cgj/bot/event/Cancelable.java
index 53b835e..65ac1a8 100644
--- a/ContentGrabbingJi-Event/src/main/java/net/lamgc/cgj/bot/event/Cancelable.java
+++ b/ContentGrabbingJi-Event/src/main/java/net/lamgc/cgj/bot/event/Cancelable.java
@@ -27,6 +27,12 @@ import java.util.Observer;
  */
 public interface Cancelable {
 
+    /**
+     * 取消该事件.
+     * <p> 该操作不可取消.
+     */
+    void cancel();
+
     /**
      * 检查事件是否已被取消.
      * @return 如果事件已被取消, 返回 true.