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These days she was acting very stupidly, as if she were in her second childhood.
这些天里,她做事傻里傻气的, 好像返老还童了似的.
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而囊性纤维化是侵袭美国儿童的第二大遗传性失调病.
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What consequence can if do not have the liver second in one's childhood, vaccinal word have?
如果小时候没打乙肝疫苗的话会有什么后果啊?
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A/ one's second childhood ( often joc); period in later life when one acts as one did as a child
（常作戏谑语）行为像孩提时的晚年时期；老小孩
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