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2 lids?。。 The top is the lid, and the bottom is the gasket (pad PP...) Open the lid.。。 Sitting on the washer... Flush out. Close the lid... Why are you asking this?。。
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One poop and one pee.
One for women and one for men.
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Is it an alien who asked the question?
1.The outermost one is the lid. Mask odors. Seal the outside. Prevent things from falling in. 2.The innermost one is the cushion. Relatively hygienic.
I don't know where you see the common sense of life... If the toilet lid is opened when flushing, the instantaneous cyclone in the toilet can carry germs or microorganisms up to 6 meters into the air and suspend them in the air for several hours, and then land on the walls and toothbrushes, mouthwash cups, and towels. People use the toilet every day, but if you are not careful, it can also become a disease.
1.The outermost one is the lid. Mask odors. Seal the outside. Prevent things from falling in. 2.The innermost one is the cushion. Relatively hygienic.
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