guard against
⇒ 防备敌人偷袭
guard against surprise attacks by the enemy
⇒ 防备火灾
take precautions against fire
英语词典包含298861条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。