- 1.
在…期间 -
• He got malaria while (he was) travelling in Africa. 他在非洲旅行期间染上了疟疾。 - 2.
当…的时候，和…同时 -
• The telephone rang while she was listening to music. 她正在听音乐时电话铃响了。 - 3.
而，然而 -
• Jane was dressed in brown while Mary was dressed in blue. 简穿了身棕色的衣服，而玛丽穿了身蓝色的衣服。 - 4.
虽然，尽管 -
• While I understand your viewpoint,I don't agree with you. 尽管我了解你的观点，我还是不能赞同你。