warn简单

warning

警告

The UK is facing a future construction crisis because of a failure to plant trees to produce wood, Confor has warned.

英国林业协会Confor警告说，由于未能植树产材，英国未来将面临建筑危机。

warning

警告

The Food Standards Authority (FSA) has [issued] a public warning about the risks of a compound called acrylamide that forms in some foods cooked [at] high temperatures.

食品标准局（FSA）发布了一项公开警告，提醒人们注意一种名为丙烯酰胺的化合物的风险，这种化合物会在一些高温烹制的食物中形成。

France’s planned tax is a clear warning: Unless a broad consensus can be reached on reforming the international tax system, other nations are likely to follow suit, and American companies will face a cascade of different taxes from dozens of nations that will prove burdensome and costly.

法国计划征收的这项税是一个明确的警告：除非能在改革国际税收体系上达成广泛共识，否则其他国家很可能会效仿，美国公司将面临来自数十个国家的一连串不同税收，这将带来沉重的负担和高昂的成本。

send out warning messages to their fellows.

向同伴发出警告信息。