she is good at swimming.为什么是swimming?
问题描述:
she is good at swimming.为什么是swimming?
答
因为be good at 词组的意思是擅长做某事,而at是介词,介词后面接动词doing形式,所以就是swimming
she is good at swimming.为什么是swimming?
因为be good at 词组的意思是擅长做某事,而at是介词,介词后面接动词doing形式,所以就是swimming