The performers danced whilst singing - they performed extremely well.
演员们一边唱,一边跳,表演得好极了。
If you are going to the library this afternoon, would you please return two books for me whilst you are there?
你今天下午去圖書館的話,可以順道替我還兩本書嗎?
Whilst at university, Xiaowang held the post of class monitor.
上大學的时候,小王擔任過班長。
However, what's interesting is that whilst there are people whose computer use has become a problem, there are also people who have recovered from illness because of using computers.
不過,有趣的是,有人因為玩電腦玩出毛病,但也有人因為玩電腦而治好疾病。
When answering this question, some people might put forward this kind of example: "Chinese people are very hospitable, whilst English people are more reserved."