手表应保持清洁，不要放在潮湿、多尘、高温和存在强磁场的地方。
Watch should be kept clean, do not put in the wet, dusty, high temperature and the presence of a strong magnetic field.
宿舍应保持清洁，状态维持良好：宿舍整体、宿舍房间、卫生间、浴室。
Dormitories should be kept clean and maintained in good condition: General Dormitory, Dormitory Rooms, Toilets, and Showers.
公寓内的日常卫生由外国留学生自己完成，应保持清洁，及时开门、开窗通风。
The work of sanitation within the room is usually done by overseas students themselves and please keep the room clean and tidy and air the room regularly.
联接管与阀口“O”形密封圈套入处应保持清洁， （见图20） 联接管有剖面线的部位处不能涂油漆。
The tube connector and "O" shape seal ring of the valve must be kept clean, and the cross section line of the tube connector cannot be painted.
实验室应保持清洁、整齐。不准随地吐痰，不准吸烟，废纸废渣应倒入指定点，实验结束后应由值日生打扫卫生。
Keep the lab clean and don't spit in the lab. No smoking. The rubbish should put into the permitted place. Clean the lab after the experiment.
地面应经常保持清洁，没有散布溢出物和物料。
卧室和餐厅的舱壁和天花板应能够易于保持清洁并应使用耐久、无毒的浅色涂料装饰。
The bulkhead surfaces and deckheads in sleeping rooms and mess rooms should be capable of being easily kept clean and light in colour with a durable, non-toxic finish.
孩子在游戏时，父母不必要求孩子一定得保持清洁或安静，以免限制了孩子愉快和探索的精神，但可以适时地教导其应尊重他人。
When a child is playing, parents don't have to ask him to keep tidy or to be quiet of which may limit his pleasure and desire for exploration. However, do teach him to respect those around him.
孩子在游戏时，父母不必要求孩子一定得保持清洁或安静，以免限制了孩子愉快和探索的精神，但可以适时地教导其应尊重他人。
When a child is playing, parents don't have to ask him to keep tidy or to be quiet of which may limit his pleasure and desire for exploration. However, do teach him to respect those around him.
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