guard against

英 [ɡɑːd əˈɡenst]

美 [ɡɑːrd əˈɡenst]

提防; 防范

柯林斯词典

• PHRASAL VERB 提防；防范
  If youguard againstsomething, you are careful to prevent it from happening, or to avoid being affected by it.
  1. The armed forces were on high alert to guard against any retaliation.
     武装部队保持高度戒备，以防发生任何报复行动。

双语例句

• We must be on guard against hidden enemies.
  我们必须警惕暗藏的敌人。
• We should be on guard against the enemy's invasion.
  我们要防范敌人的入侵。
• For example, some farmers in Kenya use donkeys to guard against lions and cheetahs.
  例如，肯尼亚的一些农民用驴来防范狮子和猎豹。
• Expose soldiers to unnecessary risks You must guard against catching a cold.
  使士兵冒不必要的危险你必须小心以防感冒。
• He is constantly on guard against any threat of humiliation.
  他时刻提防着任何有辱尊严之事。
• Actually I'm a guard against heart is heavy, who also don't believe that.
  我其实是个防备心很重的人，谁也不相信。
• Millions of doses of antibiotics and smallpox vaccine have been stockpiled to guard against biological weapons.
  为防卫生物武器的袭击，美国已贮备了数百万支抗生素和天花疫苗。
• We must guard against accidents.
  我们必须谨防事故。
• Correct mistakes if you have made any and guard against them if you have not.
  有则改之，无则加勉。
• And right off I was on guard against Mencken's books.
  我马上就对门肯的书警觉起来了。