on the siwm team为什么介词用On?

on the siwm team为什么介词用On? go and siwm in the The boy is on the school football team 为什么on the team前要加is? be in the swim team还是be on the swimming team还是be on the swim team,为什么? 为什么在足球队要用on the football team? 为什么在足球队是on the football team she is___ the office team为什么填on I didn't know you were on the basketball team .How____have you been on the team?讲一下为什么. on the swim team汉语 是on football team还是on the football team The boy is on the school football team,为什么用介词on? He is on the city basketball team 为什么用on,而不用at和with? I'm on the swim team.为什么用on,而不用in. Are the twins on the football team? swim team,swimming teamI'm on the swim team.我在游泳队.为什么不能用swimming team呢?就像driving licence一样,动名词+名词. 英语小知识（非常简单）“在游泳队”翻译成英文为“on the swimming team”还是“on the swim team”并说出为什么,谢谢! on the soccer team 的同意短语 I am on swim the team.