To put on guard; make aware of possible danger; foretell a risk to. 警告；使提防；警戒；预告危险。 They warned the ship of the danger. 他们警告那船小心危险。 The clouds warned us that a storm was coming up. 云层警示暴风雨将来临。 To notify in advance; call to one's attention. 预先通知；提醒注意。 The whistle warned visitors that the ship was ready to sail. 汽笛通知旅客船要开了。 |