Sally is on her school basketball team为什么用 on,这时的on 是“是.的成员”

Sally is on her school basketball team为什么用 on,这时的on 是“是.的成员” sally is on her school basketball team.为什么不用in 英语翻译He is on the school basketball team　这个翻译的对吗?on 是这么用的吗? He is also a basketball player on the school team. He is on the city basketball team Her sister likes playing() basketball she is on ()school tea The boy is on the school football team,为什么用介词on? The boy is on the school football team 为什么on the team前要加is? He is on the school basketball team.（L ） most of us,he likes 句型转换 He is on the school basketball team.I don't know how i he is also on the school basketball team同义句转换 at night不是在晚上吗,为什么on school night却用的是on呢?