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 understate the seriousness of the problem.

对该问题的严重性轻描淡写是错误的。

《牛津词典》

It is a mistake to simply equate longevity with issues of old age.

把长寿简单地等同于老年问题是错误的。

youdao

"It had a tremendous impact on children and adults with chronic medical conditions so it would be a mistake to characterize the pandemic as being mild."

VOA: standard.2010.04.29

Doesn't that suggest that it's a mistake to try to put monetary figures on questions of human life?

这不就表明,用金钱衡量人的生命，是个错误吗？

耶鲁公开课 - 公正课程节选

It's a common mistake to make if you forget that I've actually declared that variable up top, but wait a minute, I know any time that I use a variable, I have to declare it.

这是一个通常犯的错误，如果你忘了,之前在前面已经声明了这个变量，等等，我知道在任何时候,我使用一个变量，我必须声明它。

哈佛公开课 - 计算机科学课程节选

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

NPR: Women Of Color Lag Behind In Wealth

And it would be a mistake to place too much faith in these new studies.

ECONOMIST: Global imbalances

But Dr Cassidy said it would be a mistake to confuse sentimentality with values.

BBC: Badgers: Splitting public opinion for more than 200 years