英语中,when和while的用法有什么区别?

通常情况下可以互换。适当时候有侧重点。如：while强调同时发生。如,I was reading while she was cooking。 强调动作的同时进行 I was reading when shen was cooking。 不强调同时,只是大概意思上的同时如果你要强调你读书时,她在你读书这个同时,强调同时的概念,就用while