这种疾病通过不干净的饮用水传播。
他们开始认为共享杯子或盘子是不干净的,甚至是不礼貌的。
They started to think of sharing cups or plates as unclean and even impolite.
西蒙妈妈:别喝不干净的水!
You know, she's really nice about it. We don't really talk about it, but we're both very clean people,
她这方面很好。我们真的不需要谈论这个,但我们都是很爱干净的人,
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