fix: 补充翻译

Author: leviding

1-js/08-prototypes/03-native-prototypes/1-defer-to-prototype/solution.md

@@ -9,5 +9,5 @@ function f() {
   alert("Hello!");
 }
 
-f.defer(1000); // shows "Hello!" after 1 sec
+f.defer(1000); // 1 秒后显示 "Hello!"
 ```