swimming pool和a swimming girl中的swimming有什么区别?

swimming pool和a swimming girl中的swimming有什么区别? swimming pool中的swimming为什么要双写加ing swimming pool 分析说明 a swimming boy 和a swimming pool 中swimming一次的异同 swimming 和swim有什么区别 at the swimming pool和in the swimming pool 请问go swimming和have a swim有什么区别 英语问题（急）a swimming boy和a swimming pool.其中的swimming哪个是现在分词?那个是 at/in/on swimming pool有何区别 我们市中心有一个游泳池 There is a swimming pool swimming pool中文意思 游泳池 SWIMMING POOL怎么样