美[ˈvɪdʒələns] 1 . Drugs are a problem that requires constant vigilance .
需要对毒品问题长期保持警惕。
来自柯林斯例句
2 . The birds cannot afford to relax their vigilance against predators.
鸟儿不敢放松对捕食者的警戒.
来自《简明英汉词典》
3 . Never relax your vigilance while you live in peace.
你们要居安思危.
来自《简明英汉词典》
4 . Constant vigilance is necessary in order to avoid accidents.
为了避免意外事故,必须经常保持警惕.
来自《现代汉英综合大词典》
5 . We shouldn't relax our vigilance at any time.
任何时候我们都不应该放松警惕.
来自《简明英汉词典》
1.the process of paying close and continuous attention
2.vigilant attentiveness;
he keeps a weather eye open for trouble
