他们不知何去何从。

They did not know whither they should go.

《牛津词典》

或是一只不知何去何从的野猪。

Or a wild boar don't know which way to go.

youdao

然后，就如我们上个星期所知道的，他第一次不知何去何从。

It was then, as much as last week, that he first failed to see a way out.

youdao

So that you're not just handed something that's entirely new to you with no idea which direction to go, we actually do set you off on an appropriate path.

这样一来就不会因为面对完全陌生的东西,而不知何去何从了，我们真心希望能把你们带到正确的道路上来。

哈佛公开课 - 计算机科学课程节选