超过一半的人会感染1型单纯疱疹病毒，通常都是通过亲吻传染。
More than half of us have been infected with the HSV-1 virus, usually from well-meaning kisses from relatives or romantic partners.
一些人认为讽刺性的贬低对方很聪明，如果你的另一半喜欢贬低他人，那可能不是单纯性的针对你。
Some people think sarcastic put-downs are witty and if your partner's like it with everyone, it might not be directed at you.
设S是一个右单纯、右可消的半群。
设S是一个右单纯、右可消的半群。
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