diff --git a/docs/src/howto/translate.md b/docs/src/howto/translate.md
index 9a2660a..b7e7e87 100644
--- a/docs/src/howto/translate.md
+++ b/docs/src/howto/translate.md
@@ -3,9 +3,7 @@
 ## 范例
 
 ```python
-from Difficult_Rocket.utils.translate import Tr
+from Difficult_Rocket.utils.translate import tr
 
-Tr.lang
-
-print(Tr.window.setup.done)
+print(tr().window.setup.done())
 ```