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你是否曾为打嗝苦恼?你是否曾怀疑鸡皮疙瘩的用处?人类在进化的同时,也遗留了一些惹眼的不完美之处。它们与生俱来,无法抛却,却也见证了生命的玄奥。
Have you ever been troubled by hiccups? Have you ever wondered what the use of goose bumps does? There are some flawed imperfections left over from human evolution. They are born, can not be left behind, but also witnessed the mysterious life.