be good at 的用法可以这样表达吗?
问题描述：
be good at 的用法可以这样表达吗?
she is good at play pingpang.
答
be good at后面应该加名词或者动名词,比如
You are good at English．
You are good at speaking English
所以你的句子可以改成
she is good at pingpang或者
she is good at playing pingpang