当 while 翻译成“然而”时是引导的是比较状语从句。

例句：

Schools in the north tend to be better equipped, while those in the south are relatively poor.

北方的学校设施往往要好一些，而南方的学校则相对差一些。

扩展资料

while引导状语从句的主要用法有两种

1.表示“当(在)……的时候”.如：

We must strike while the iron is hot.我们要趁热打铁.

Were there any calls for me while I was out?我出去的时候,有人来过电话吗?

Stand still while I take your photograph.我给你拍照时站着不要动.

2.表示“尽管,虽然”.如：

While the work was difficult,it was interesting.虽然工作有难度,但很有趣.

While I understand what you say,I can’t agree with you.虽然我理解你的意思,但我还是不同意.

3注意：While引导的从句的谓语动作必须是延续性的,并强调主句和从句的动作同时发生（或者相对应）.并且while有时还可以表示对比.例如：

While my wife was reading the newspaper,I was watching TV.(was reading是延续性的动词,was reading和was watching同时发生)

I like playing football while you like playing basketball.我喜欢踢足球,而你喜欢打篮球.（对比）