spend time （on） doing sth 和spend time （in） doing sth

spend time （on） doing sth 和spend time （in） doing sth spend time in doing sth和spend time on doing sth的区别 spend time on sth 和spend time in doing sth 用法和区别 sb spend some time in doing sth sb.spend time(in)doing sth. sb spend time mony in doing sth spend time in doing sth 和spend time to do sth有什么区别? spend time in/at sth和spend time doing sth的问题 spend doing sth和spend on sth spend+ time 后面一定要有“（in）doing”或“on sth”么? 英译汉.①sb spend $/time on sth ②sb spend $/time in doing spend的用法spend 一般不就用在spend on sth 和spend (in) doing sth spend