廊坊危险品运输公司:during,while和when有什么区别?
来源:百度文库 编辑:查人人中国名人网 时间:2024/10/04 23:32:46
during 是 在……期间
如
during the war
while , when都是当……时
但是while一般用做对比,如:
i was singing while he was dancing.
when范围大些,用的也多些
如:
when i came in , he was sitting in the sofa.
复制我答案的人不得好死!!