diff --git a/aio/content/guide/component-interaction.md b/aio/content/guide/component-interaction.md
index e18d01a07f..65f60e24d5 100644
--- a/aio/content/guide/component-interaction.md
+++ b/aio/content/guide/component-interaction.md
@@ -629,4 +629,6 @@ and verify that the history meets expectations:
 
 
 
-[Back to top](guide/component-interaction#top)[回到顶部](guide/component-interaction#top)
\ No newline at end of file
+[Back to top](guide/component-interaction#top)
+
+[回到顶部](guide/component-interaction#top)
\ No newline at end of file