fill one's shoes
substitute satisfactorily for;take the place of sb. and do as well成功地代替
When Jack got hurt,the coach had nobody to fill his shoes.杰克受伤时,教练找不到能代替他的好球员。
It will be difficult to find someone to fill the old professor's shoes.要找个能胜任的人来替代这位老教授的工作是很困难的。