spend in和spend on的区别：中文含义不同以及用法不同。spend in意为在……上花费，是指做什么事花费了时间，in也可省略，后面接动名词形式；而spend on是指在什么事上花费了时间或者金钱，后面接名词。
一、spend in的基本含义及用法介绍
spend in意为在…上花费，是指在做什么事上花费了时间,后面接的是动词-ing。例句有：
1、I'd planned to spend my weekend in the sun, planting flowers outdoors ．
我原计划在阳光下度过这个周末，到户外去种种花。
2、They will spend about five years in building the high-speed railway.
他们将花大约五年时间修建这条高速铁路。
3、And how much time do you spend organizing these things in your home?
你花了多少时间在家里整理这些东西?
4、Reconsider the 15 minutes you spend in line at the cafe to get coffee ．
重新考虑你在咖啡馆排队买咖啡的15分钟。
5、I never dreamt that I would spend my old age in such comfort and happiness.
我做梦也没想到我能过这样舒适幸福的晚年。
二、spend on的基本含义及用法介绍
spend on意为在…花费;在…花费时间;在…花钱;在…上花费；是指在什么事上花费了时间,后面接名词。例句有：
1、We have to account for every penny we spend on business trips.
我们出公差所用的每一分钱都得报清楚。
2、They will then have more money to spend on other things.
这样他们就可以有更多的钱花在其他地方。
3、How much time did you spend on this?
你做这事用了多少时间？
4、Make notes of how much money you spend on the trip.
把旅途中的开支记录下来。
5、So parents have got more money to spend on each child.
所以父母有更多的钱花在每个孩子身上。
