Please don't talk so loud while others are working.
While I was cleaning the window，my finger was seriously cut。
While she is a top student， she has some shortcomings. While the Internet is bridging the distance between people， it may also be breaking some home or will cause other family problems。
3、“只要，如果”等于as long as，引导条件状语从句。
There is hope while there is life. While you study hard， your effort will pay off。