简单化

今天上英语的时候，

老师问了meaning of words,

"what is trade?"

"exchange goods and services..."(econ term)
"exchange things..."

我们给了很多答案...

结果
"trade is buy and sell..."

人长得越来越大，思想就会复杂化...

为什么不从简单开始？

make your life easier...