good at后面是跟动词原型吗?那 he is good at playing football.才是对的吧?

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good at后面是跟动词原型吗?那 he is good at playing football.才是对的吧?
good at后面是跟动词原型吗?
那 he is good at playing football.才是对的吧?

good at后面是跟动词原型吗?那 he is good at playing football.才是对的吧?
动词ing形式

不是,是doing

句型:be good at sth/doing
be good at swim 和be good at swimming 都是正确的 懂了吗?