美[?v?d??l?ns] 1 . Drugs are a problem that requires constant vigilance .
需要對毒品問題長期保持警惕。
來自柯林斯例句
2 . The birds cannot afford to relax their vigilance against predators.
鳥兒不敢放松對捕食者的警戒.
來自《簡明英漢詞典》
3 . Never relax your vigilance while you live in peace.
你們要居安思危.
來自《簡明英漢詞典》
4 . Constant vigilance is necessary in order to avoid accidents.
為了避免意外事故,必須經(jīng)常保持警惕.
來自《現(xiàn)代漢英綜合大詞典》
5 . We shouldn't relax our vigilance at any time.
任何時(shí)候我們都不應(yīng)該放松警惕.
來自《簡明英漢詞典》
1.the process of paying close and continuous attention
2.vigilant attentiveness;
he keeps a weather eye open for trouble
