Were they singing while you were working?

当你工作的时候，他们正在唱歌吗？

youdao

Mother likes singing while Father likes sports.

母亲喜欢唱歌，而父亲喜欢运动。

youdao

He likes singing while his sister likes dancing.

他喜欢唱歌，而他的妹妹却喜欢跳舞。

youdao

Later,he got a job singing while serving people their food in a restaurant.

VOA: special.2009.12.20

He is not a gentleman. But how magically his singing violin can conjure up a tendresse, a compassion for Lolita that makes us entranced with the book while abhorring its author.

他不是绅士，但神奇地他的小提琴声,能召唤出对Lolita的宠爱和同情,那让我们对这本书着迷，同时却在憎恨着作者。

耶鲁公开课 - 1945年后的美国小说课程节选

Buddy Holly was killed in the crash of a small plane while on a singing tour in the Midwest.

VOA: special.2009.04.06

You could hear their horses from down where we were, and someone was singing while he worked.

NPR: Excerpt: 'World Made By Hand'

"Albatross" finds Goreas taking the vocal spotlight, singing sweetly while accompanied by insular, shoegaze-tinged fuzz.

NPR: The Besnard Lakes: Filling The Room With Sound

Ainslie, while singing an extremely demanding role, was forced to preen and prance while wearing a variety of garish outfits that included fishnet stockings and a glittering codpiece draped in fringe.

WSJ: Baroque opera in burlesque house