The taxi driver reeled off a list of historic edifices they must not fail to visit.

出租车司机一口气说出了一串他们不应错过参观的历史建筑。

《柯林斯英汉双解大词典》

I had made it as plain as I could so that he could not fail to take my meaning.

我已经尽我所能地说明白，所以他不会不理解我的意思。

《柯林斯英汉双解大词典》

Universal banking need not fail.

全能银行模式未必不好。

youdao

At sixty degrees below zero, a man with wet feet must not fail in his first attempt to build a fire.

VOA: special.2010.05.01

This is actually something very near and dear to my heart because I literally would not be doing what I do in life today had I not taken a couple of courses here, this one in particular, pass fail.

事实上，我是很关心的,因为今天我就不会站在这里,如果当初我没有这里上课的话，这门课，要么过要么挂科。

哈佛公开课 - 计算机科学课程节选

If the person has not mastered the basic concept, the person must fail, must get four or less.

如果他没有掌握基本的概念，那就一定不能通过考试，只得十分之四或更少。

麻省理工公开课 - 固态化学导论课程节选

He perfected his technique and, after a while, he knew he could not fail.

NEWYORKER: Ziggurat

It added that the church could not fail to be saddened by the events.

BBC: Scotland

Afghanistan is a fabulously beautiful country and that could not fail to reflect on its people.

BBC: NEWS | South Asia | Moscow's Afghan war: The interpreter's story