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.
相关单词
广而告之
1一秒钟记单词小学英语单词记背神器英语一二三四五六年级人教版英语词汇汇总表单词记背神器 单词记忆书单词词汇速记强化训练
【推荐理由】赠运费险，热门商品
【现价】27.9
【下单链接】38￥ CZ3457 5OArdvEMFvn￥