英语词源
- vigilance (n.)
- 1560s, from Middle French vigilance (16c.), from Latin vigilantia "wakefulness, watchfulness, attention," from vigil "watchful, awake" (see vigil). Related: Vigilancy (1530s).
权威例句
- 1. Drugs are a problem that requires constant vigilance.
- 需要对毒品问题长期保持警惕。
- 2. The birds cannot afford to relax their vigilance against predators.
- 鸟儿不敢放松对捕食者的警戒.
- 3. Never relax your vigilance while you live in peace.
- 你们要居安思危.
- 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.
- 5. We shouldn't relax our vigilance at any time.
- 任何时候我们都不应该放松警惕.