他们警告他独自航行的重重危险。

They warned him of the dangers of sailing alone.

《柯林斯英汉双解大词典》

作为波士顿最古老的学校之一，Rydal 小学不接受以家庭假期为请假理由，并且给了他们警告通知。

Rydal Elementary School, one of the oldest schools in Boston, doesn't accept family holidays as an excuse for their absence and give them a warming notice.

youdao

他们警告我说我们的感情不会有结果。

They warned me that the relationship would never work out.

youdao

And Moses admonishes the Israelites not to suppose that their inheritance of the land of Canaan is due to their own powers, or on account of any righteousness or virtue that they possess.

摩西警告以色列人不要想当然地认为,他们继承迦南之地是凭借了自己的力量，或者视之为他们所拥有的正义和美德。

耶鲁公开课 - 旧约导论课程节选

They warn us of dangerous trends. They point out potent evils.

他们为我们警告对危险倾向，指出潜在的邪恶。

耶鲁公开课 - 1945年后的美国小说课程节选

In other words, they probably bear a distant relation to the semiotics of the stoplight, and that's probably why red was chosen for ambulances and police cars: because they put into your head the notion of "stop."

这很可能是源自于,红灯在一些语义中表示停止的意思，它被应用在了救护车和警车上：,因为他们带有警告的意味“

耶鲁公开课 - 文学理论导论课程节选