巧记:
dur 持续 -> 持续（一段时间）-> during 在...期间
prep. 在…...的期间在......期间的某个时候During the drive， the baby slept.
在行驶中那个婴儿睡了。
Eggs were rationed during the war.
战争期间，鸡蛋限量供应。
You are not to talk during the exam.
考试期间不许说话。
He became a navigator during the war.
战争期间他成了一名领航员。
Violence intensified during the night.
在夜间暴力活动加剧了。
