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One man and one woman.
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Mixed toilets.
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Communal toilets, both male and female.
NC stands for normal closed. It means that the toilet door is normally closed, which means that the door is closed casually.
London, because it is "taking turns to squat", so it is called London.
It must be to inform the boys to go to the boys' toilet and the girls to go to the girls' toilets, so don't make a mistake.
If you want to urinate or poop, just get up and go to the toilet.
This is a good dream: dreaming of drowning in the toilet is to make a fortune, and the dream of stool overflowing in the bathroom is a dream of money that attracts fortune if it can be summed up in one sentence. The dream of in the bathroom suggests that you will get a windfall rather than a fortune through hard work.