It would be a shame if you lost it.

你要是把它丢了就太可惜了。

《牛津词典》

It would be a mistake to follow his example.

仿效他的做法是错误的。

《牛津词典》

It would be a mistake to ignore his opinion.

忽略他的意见是不对的。

《牛津词典》

So,I said to myself, it would be a simple, harmless act to help him as much as I could.

VOA: special.2010.03.27

So the exodus is a paradigm for salvation, but it would be a mistake, I think, to view the Exodus as the climax of the preceding narrative.

出埃及是救赎的范本，但我认为，这也许是个错误，把《出埃及记》当做前面叙述的高潮。

耶鲁公开课 - 旧约导论课程节选

and you could've referred to it there's a movie how it would be a Hollywood movie called Jezebel with Betty Davis, remember?

而你又无法提及,这部电影,好莱坞电影《骗子》,贝蒂戴维斯主演？

麻省理工公开课 - 电影哲学课程节选

But it would be a mistake to conclude that marriage, then, is the answer.

NPR: Women Of Color Lag Behind In Wealth

Back at the tented camp, the chorus of Serengeti wildlife ensured it would be a sleepless night.

BBC: On the hunt with Hemingway

It would be a way of unclogging our traffic jams without spending a penny on new highways.

FORBES: Ending Dunder Mifflin: A 21st-Century Way To Save America $250 Billion A Year