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为什么胎儿会踢母亲的肚子？对骨骼关节发育很重要
source link: https://tech.sina.com.cn/d/f/2018-07-09/doc-ihezpzwt7746465.shtml
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新浪科技讯北京时间7月9日消息，据国外媒体报道，孕妇第一次感觉到腹中宝宝踢腿会让她惊讶欣喜，这会让母亲们突然感受到腹中胎儿正在逐渐长大，但为什么胎儿会踢母亲的肚子呢？一位专家在接受记者采访时称，虽然胎儿在子宫中的运动空间较狭小，但是他们踢腿
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