step into the shoes of sb.

例句：

1. 1. She stepped into the shoes of her sister when she was sick.
   当她生病时，她代替了她的姐姐。
2. 2. He stepped into the shoes of his brother when he was injured.
   他代替他的兄弟受伤了。
3. 3. The new manager stepped into the shoes of the departed boss.
   新任经理接替了离任的老板。