The lab staff shall keep the lab clean according to the lab rules and regulations.
实验人员须按实验室规章制度做好实验室清洁工作。
Listen carefully when your teacher reads and explains the rules before your first lab lesson.
当你的老师在你的第一堂实验课前阅读和解释规则时，请仔细听。
You should follow the rules of the lab when you are doing experiment.
你们做实验时，就应该遵守实验室的规则。
You should follow the rules of the lab when you are doing experiment.
你们做实验时，就应该遵守实验室的规则。
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