入厕前要检查水管与下水道管道，确保它们完好无损。
Check to see that water and sewage lines are intact before using the toilet.
如厕前要检查水管与下水道管道，确保它们完好无损。塞好浴缸与水槽的下水口，以免污水倒流。
Check to see that water and sewage lines are intact before using the toilet. Plug bathtub and sink drains to prevent sewage backup.
刘占成还说，此次挖掘工作对目前的保存技术也是一大考验。 数十年来，西博一直致力于研究如何才能使未出土的兵马俑完好无损，确保它们能够维持原色。
Liu also said the excavation will test preservation technology that the museum has spent decades developing to keep the undiscovered terracotta figures intact and retain their original colors.
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