Have you never done this before?

你以前没做过这个吗？

youdao

Ross: Rach, have you never done this before?

你以前没有洗过衣服吗？

youdao

He had never done this before, and it made me excited.

他以前从来没有这样做过，这使我激动万分。

youdao

People who have seen this before, done it before, lived through it, and now you can count on them not to run away, better than you can on a fresh recruit who's never done this before.

有经验,杀过人,亲历过战争的人,往往可以靠得住,不至于临阵脱逃,从没参加过战斗的新兵蛋子一般都不怎么靠谱

耶鲁公开课 - 古希腊历史简介课程节选

So we created this on-site service program for servicing PCs, which had never been done before.

所以在PC服务方面,我们开启了现场服务项目，这是史无前例的。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

I've never done this sort of thing before."

我从来没有做过这事以前“

耶鲁公开课 - 死亡课程节选

He adds that although his parents have owned a second home in nearby Three Mile Harbour for decades, 'They've never done this before.

BBC: Escape from New York

Mercedes Marquez, assistant secretary at the Department of Housing and Urban Development, told CNNMoney that the initial stage of the program has been difficult, in part, because the cities and communities involved in the program have never done this work before.

CNN: Patience needed for housing loan program, home buyer finds

"I am kinda flying by the seat of my pants because I never done nothing like this before, " Russell said.

CNN: Out of a job and finding work for others