肯定也是原因之一。但是美国孩子普遍运动得太多点太狠点。瘸腿断胳膊脑震荡都是常事

来源: greenoasis 于 2019-12-27 10:18:31 [旧帖] [给我悄悄话] 本文已被阅读：次

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