diff --git a/docs/process/completeWork.md b/docs/process/completeWork.md
index 6c35066..533fa29 100644
--- a/docs/process/completeWork.md
+++ b/docs/process/completeWork.md
@@ -179,7 +179,7 @@ if (
 
 ```js
                        nextEffect         nextEffect
-rootFiber.firstEffect -----------> fiber -----------> fiber
+rootFiber.firstEffect -----------> fiber -----------> fiber <----------- rootFiber.lastEffect
 ```
 
 这样，在`commit阶段`只需要遍历`effectList`就能执行所有`effect`了。