spend in doing还是 on doing

spend in doing还是 on doing spend.on spend.in 与spend.doing的区别 spend in doing 和 spend on doing的区别 spend time后面+on doing还是spend time doing spend...on(in)doing sth.造句 spend ...on(in) doing sth ---------------------------------------------的区别 spend money是spend money on doing sth 还是spend money in doing sth?我们老师讲的on doing sth 我的意思是in/on 能不能互换？ Spend much time ▁▁▁▁▁doing my homework .用in 还是on spend time in doing sth和spend time on doing sth的区别 spend…on /(in) doing sth.分别造句 配中英文 spend…on /(in) doing sth.分别造句 配中英文 spend time doing有没有?spend time on〔in〕doing中的on‖ in可省吗? spend 带的是in 还是on? spend的用法spend 一般不就用在spend on sth 和spend (in) doing sth spend with哪来的?spend sometime with sth可以么? spend money on doing sth 有这用法吗spend money on doing 与spend time in doing 是这样吗,求详解~ spend on sth 等于spend doing sth spend time on sth 和spend time in doing sth 用法和区别 spend on与spend in doing区别就是后面加什么