警戒英文：
[词典] warn;?warning admonish;?be on the alert against;?guard against;?outpost;?alert;?guard;?watch;?
[例句]
1、各哨所警戒，人类禁止通行。Warn?the outposts. don't let the humans?pass.
2、核武装轰炸机在危机期间负责警戒
Nuclear-armed bombers were put on alert during the crisis.
3、侦探们又开始在那楝房子警戒了。
The detectives resumed their vigil at the house.
4. But? I have to warn you.
但是? 我必须得提醒你。
5. I warn you not to go out alone at night .
我警告你晚上不要一个人单独外出。
6. I should warn you against some of the advice below.
我应当警告你，不要服从以下的一些建议。
7.The draft constitution also requires party members to?be?constantly?on?the?alert?against?the intrigues of the enemy and to guard party and state?secrets.
党章草案还规定，党员必须时刻警惕敌人的阴谋活动，保守党和国家的机密。