huán jìng wèi shēng
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  • n.sanitation; environmental sanitation

    • huán jìng wèi shēng gǎo bù hǎo shāng hán jiù huì chéng xū ér rù

      环境卫生伤寒乘虚而入

      Typhoid fever sneaks in when sanitation fails.

    • huán jìng wèi shēng wěi yuán huì

      环境卫生委员会

      the environmental health committee