If you must move, don't follow a stream unless you know it, and in that case, you are not lost.

如果你非要走动的话，别顺着溪流走，除非你对它很熟悉。但是如果你很熟悉，那你就不会迷路了。

youdao

From the profusion of electronic-text sites available, it looks as if this virtual library is here to stay unless a proposed revision to copyright law takes many publications out of the public domain.

从现有的大量电子文本网站来看，除非版权法的修订提案将许多出版物排除在公共领域之外，否则这个虚拟图书馆似乎将继续存在。

youdao

Even if true, this evidence does not refute the contention that editors should bear some of the blame for the reductions, unless editors are merely passive instruments responding to reader interest.

即使这是真的，这一证据也不能反驳编辑应该承担部分责任的论点，除非编辑只是被动地回应读者的兴趣。

youdao

If this happens, people should remain in or near their car unless they see some kind of help.

VOA: special.2010.01.05

You are not dreaming right now, unless you're asleep but if you're-- and you can't usually be immoral in a dream.

你们现在不是作梦，除了那些睡着的同学-,我们很少会在梦里做出不道德的事。

耶鲁公开课 - 心理学导论课程节选

And so, even by units analysis, if the units come out right, you've got a good shot that unless you've really, really messed up, that the answer is going to be right.

甚至在单位分析中，如果你的单位正确，你就能做的很有条理否则会一团糟，而注意了单位你的答案才有可能正确。

麻省理工公开课 - 固态化学导论课程节选

The government said it would not hold talks with the ELN unless if showed "acts of peace" rather than words.

BBC: Uwe Breuer (l) at Aguas Claras airport in Colombia

So, I do not see IRC simplification coming soon, if ever, unless likeminded people with the courage of their convictions join together and insist that our government do what it was supposed to do from the beginning.

FORBES: More Pictures of a Tax Code Gone Wild

"It's hard to say if a management strategy is effective or ineffective unless we know if the person truly has the disease, " Chafen said.

CNN: Food allergy diagnosis 'an inexact science'