由于气候炎热，因此，保持环境卫生至关重要。
请保持环境卫生。
保持环境卫生整洁，不随地吐痰，便溺，不乱扔废弃物。
公共交通的普遍使用减少了污染而且能够保持环境卫生更有利于人们生活。
Great use of public transportation causes less pollution and will keep the environment cleaner and better for people to live.
保持校园内的环境卫生。
保持机器及其环境的干净、整洁和安全(环境卫生)。
Keep the machines and environment in clean, tidy and safety condition (Housekeeping).
进行日常环境卫生活动来保持现场的状态符合5s的程序。
Conduct daily housekeeping activities to keep the status in compliance with the 5s program.
保持公寓环境卫生，保持个人物品的洁净和整齐存放。
Please keep the sanitation of the apartment and preserve your personal things in the right place. Please maintain the public sanitation consciously.
保持公寓环境卫生，保持个人物品的洁净和整齐存放。
Please keep the sanitation of the apartment and preserve your personal things in the right place. Please maintain the public sanitation consciously.
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