After two weeks, she wanted to give up running because she thought the two-week exercise didn't work at all.

两周后，她想放弃跑步，因为她认为两周的锻炼根本不起作用。

youdao

They generally didn't work at all or only worked for a short period of time.

它们根本无法工作，或者只工作了一个小段时间。

youdao

It is a given that the would have told the world that there defence system didn't work at all when tested.

他们满可以告诉众人他们的实验失败防御系统没有用的。

youdao

When I was nearly twenty years old, they insisted that I learn a profession even though we were a rich family, and I really didn't have to work at all.

VOA: special.2009.07.18

"We didn't pay a great deal of attention to the security side of the Internet when it was first being designed because we didn't really know if it would work at all, " Cerf said in the keynote address at Georgia Tech's annual security summit.

FORBES: Made For Hacking