spend...in...\spend...on...有什么区别

spend...in...\spend...on...有什么区别 spend on 与 spend in有什么区别? spend in 和 spend on 有什么区别 sb spend on sth和sb spend in dong sth有什么区别 spend on与spend in doing区别 spend in和 spend on的区别 spend doing sth.和 spend on sth.有什么区别? spend on和spend for有什么区别? spend.on spend.in 与spend.doing的区别 spend an hour on ……和spend an hour in……有什么区别?如题 spend in doing 和 spend on doing的区别 spend…on花什么?spend…in花什么?