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撫養孩子
食物和飲料
工藝
寵物
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家居與園藝
孕
嬰兒
懷孕需要多長時間
懷孕和胎兒發育的工作怎麼樣?
當卵和精子混合在一起時,受孕就會發生。從那裡,合子形成並逐漸發育成胎兒。
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>> Saving a baby falling from the 12th floor of the apartment building,
a real-life superhero appears