market和exchange区别

market是市场的意思，而exchange则是交换的意思，区别可以从以下例子看出：

When we trade share, we need to put our order in the market, then our order will be excuted by stock exchange Centre. 当我们交易股票时，我们需要在市场上下订单，然后我们的订单将由证券交易所执行。