They have been warned.

他们受过警告了。

youdao

Do you understand these rights as they have been warned to you?

你理解我所告知你的这些权利了吗？

youdao

Wildlife photographers have been warned they could be prosecuted for playing birdsong noises on smart phones to lure birds out of their nests.

野生动物摄影师被警告说，他们可能会因为在智能电话上播放鸟鸣声来诱使鸟儿离巢而被起诉。

youdao

Now they have at least been warned.

ECONOMIST: Credit derivatives

They are due to be sentenced at Liverpool Crown Court on 29 April and have been warned they face jail.

BBC: Croxteth Crew gang members face jail

Under any likely scenario, the beneficiaries of the pension fund never learn they have been robbed and other investors that may have been victimized by the manager are never warned.

FORBES: Hidden Crimes; Too Many Secrets: How Money Managers Hide Illegalities From Investors (August 1, 2000)