begoodat同义词,begoodat

香港朗文教材be good at schoolppt
be good for,be good with,be good to,be good at的区别
module 2 work and play unit 6 pe lessons--频度副词,be good at
最后一个be good at用什么行式填?
反正表擅长于做某事be good at doing something,因为at是介词介词