spend.on doing sth中on能不能去掉?

spend on sth 等于spend doing sth 有spend.on doing sth spend.on doing sth中on能不能去掉? spend doing sth.和 spend on sth.有什么区别? spend...on(in)doing sth.造句 spend st/sm on doing sth 造句 spend ...on(in) doing sth ---------------------------------------------的区别 spend doing sth和spend on sthspend doing sth等于spend on it takes sb some time to do sth 等于 spend doing sth 、 spend on why? 1.pay for sb/sth和spend.doing sth, spend.on sth的用法急~~~~~ 谢谢!o(∩_∩)o spend time in doing sth和spend time on doing sth的区别 spend/waste.doing sth.spent on sth./spent .(in) doing sth. sb spend + doing sth spend doing sth. 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 time on sth 和spend time in doing sth 用法和区别 spend on sth 和spend doing sth的意思英语大虾您进来,小女子~咳 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