An amino acid, C6H 14n 4o 2, obtained from the hydrolysis or digestion of plant and animal protein.
一种胺基酸，C6H 14n 4o 2，从植物及动物蛋白的水解或消化中获取。
There are two pieces of 50 centimeters long, 20 centimeters wide stone buried in the ground, about 4o cm intervals, at first glance nothing unusual, in fact, two mysterious stone is incredible point.
有两块长50厘米、宽20厘米的石板埋在地面，间隔约4 O厘米，乍看没什么不寻常的地方，其实两块石板就是不可思议的神秘点。
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