人體補鈣通過鍛煉有點象發豆芽。發豆芽時，在上麵放一重物，豆芽反而長得粗壯，發的快。

來源: 大海於 2017-05-21 10:33:44 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.