严防

yán fáng shòu cháo

严防受潮

keep dry

yán fáng xiè mì

严防泄密

take strict precautions against leaks

yán fáng dí rén pò huài

严防敌人破坏

take strict precautions against enemy sabotage

yán fáng shì gù

严防事故

take strict precautions against accidents

tā men duì chéng shì yán fáng sǐ shǒu

他们对城市严防死守。

They protected the city with all their efforts.

lǐng dǎo gàn bù yī dìng yào nǔ lì yán fáng xiàng huài de fāng miàn biàn huà

领导干部一定要努力严防向坏的方面变化。

Leading cadres should try hard to keep away from bad aspects.