The man is famous for his great skill___swimming

题目

The man is famous for his great skill___swimming
填at还是in?
标准答案是at但我语感觉得是in.

答案

两个都可以
一般来讲,说哪一方面的技巧,介词用 at 或 in,如：她的刺绣技术或技巧 既可以用 her skill at embroidery来表达,也可以说成 her skill in embroidery. Skill at/in 是说“在...方面或领域有一定技巧或技术”.