严防的英文：
take strict precautions against

参考例句：
  • We should keep a sharp look - out for their disruptive activities.
    我们要严防他们的破坏活动。
  • In scientific discussions it is essential to guard against subjectivism and arbitrariness.
    在科学讨论中要严防主观武断。
  • The desiccator tells you: Photographic apparatus should be kept dry.
    干燥剂告诉你:摄影器材，严防受潮。
take是什么意思：
v. 拿，取；带；获得；采取；承担；吃；耗费；乘，搭；以为；理解；走；抓住
  • a catch; a take; a taking
    捕获量
  • take a nap; take a snooze
    小睡一下;睡午觉
  • take service with
    在￥帮佣
strict是什么意思：
adj. 严格的；严厉的；严谨的；精确的；完全的；周密的
  • follow a strict diet
    严格遵照饮食规定
  • She is strict in the matter of discipline.
    她对纪律的要求是严格的。
  • There are strict controls on immigration into this country.
    移民到这个国家有严格的限制。
precautions是什么意思：
n.[C]
1.预防措施或方法
  • I took an umbrella as a precaution.
    我带了一把伞以防下雨。
  • All this woke the local government to the need for safety precautions.
    所有这些使当地政府认识到必须采取安全预防措施。
  • We have taken necessary precautions against fire.
    我们已采取必要的防火措施。

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