be weak in; be weak at 这两个有什么区别?有人说be weak in 后面跟某科目,但是牛津高阶有一例句：Her school report shows that she is weak at/in arithmetic and biology.
问题描述：
be weak in; be weak at 这两个有什么区别?
有人说be weak in 后面跟某科目,但是牛津高阶有一例句：Her school report shows that she is weak at/in arithmetic and biology.
答
“俊狼猎英”团对为您解答.
(1)当后面跟科目时,be weak in=be weak at.如：I am weak at English=I am weak in English.
（2）be weak at 后面通常只跟科目,如Engiish,Chinese,math等；be weak in 除了跟科目,后面还可以跟某事,如be weak in running / sports/ dancing等等.
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