保持清洁

• You should clean your room to keep it from getting dirty
  你应清扫一下你的房间以保持清洁。
• We must always keep our classroom clean
  我们应使教室一直保持清洁
• A doctor ' s instruments must be kept clean
  医生的用具必须保持清洁
• The will must be kept clean so that germs do not infect it
  伤口需保持清洁，才不致于感染细菌。
• Good hygiene helps to minimize the risk of infection
  保持清洁有助于最大限度地减少感染的危险。
• Cleanliness is next to godliness . .
  保持虔诚要比保持清洁更重要
• It ' s not like you ' re not trying
  倒不是因为我没努力保持清洁
• I believe in get into hot water ; it keep you clean
  我相信泡进热水（陷入困境）是好的，可以保持清洁嘛。
• Clean up scraps ; keep the machine and environment clean
  清除切屑、擦拭机床，使机床与环境保持清洁状态。
• Please keep the venue clean & dispose all trash before leaving
  请保持清洁，离开前请清理并带走所有垃圾。