exchange是什么意思(exchange和alternate的区别)

exchange是交换的意思，而alternate则是交流或者轮流的意思，区别可以从以下例子看出

We are exchanged students from overseas, there are alternatives students next term, so many people can experience it. 我们是来自海外的交换生，下学期有替代学生，所以很多人都可以体验