spend...in...\spend...on...有什么区别

spend...in...\spend...on...有什么区别
spend...in...\spend...on...有什么区别

spend...in...\spend...on...有什么区别
spend time/money on sth
在某物上花时间/金钱
spend time/money (in) doing sth
在做某件事上花时间/金钱
in可以省略

spend in doing sth
spend on sth