"对什么擅长"用英语怎么说??

be accomplished in
be good at
be skilled in
be professional at

be good at
skilled in

do well in
be bood at
be skilled in

be good at

I used to be good at cricket, but now I'm out of practice.
我板球曾打得很好，可惜现在已生疏了。
The soldier was good at playing fife.
这名士兵善于吹笛子。

此外还有： be strong in ， be great at， be great in ，be adept at 等等....用法同上.

是be goog at，举一个例子,他擅长英语：he is good at Engliah

be good at