环境卫生

environmental sanitation

这里的环境很好。

The environment here is very good.

周围的环境

surrounding environment

生活环境

living conditions

家庭环境

home environment

战争环境

war environment

自然环境

natural environment

社会环境

social environment

地理环境

geographical surroundings

改善国际环境

improve the international environment

环境复杂。

The circumstances are complex.

如环境允许

if circumstances permit