be good at 的用法可以这样表达吗?

she is good at play pingpang.

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be good at后面应该加名词或悔弯者动名词，比如
You are good at English．
You are good at speaking English

所以帆孝你的句碧轿闷子可以改成
she is good at pingpang或者
she is good at playing pingpang

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to be good at doing sth.这是一个轮判固定短物信语，腊蚂改意思是，擅于做某事

所以应该是She is good at playing pingpang.

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at是敏丛介词，败链后面应察拿孙该加ing

所以这句应该说：
She is good at playing pingpang.

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be good at + 名词(play 的名词就是动名词playing)

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应该用be good at doing something
你乎者的历局造肢顷让句应该是she is be good at playing pingpong

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