小孩出生當然沒啥免疫功能，所以嬰幼兒時期年年感冒發燒，就是在develop免疫係統。

來源: Ucan111 於 2021-01-24 08:36:05 [舊帖] [給我悄悄話] 本文已被閱讀：次

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