英语中有很多单词,有各自的本义和引申义,加上了介词或副词之后也许又是另一个意思,不信你看——Traffic in(with) To carry on trade,esp of an unlawful or improper kind,in(a particular type of goods)买卖,交易(尤指非法的货物) The criminals made large profits by trafficking in stolen goods.犯罪分子通过买卖赃物获取巨大利润。Lay off To stop employing(a worker),esp for a period in which there is little work(尤指因工作少而临时)解雇They laid us off(work)for three months.他们将我们临时解雇三个月。还有一些词,不仅一个意思,使用的时候也要特别