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牛是一种反刍类动物,它们见到草便会埋头猛吃,然后在无草的时间里慢慢咀嚼消化。牛的驯化家养,在中国大约有四千年的历史。殷商时代,仍是一个家养牛和狩猎野
The cow is a ruminant, and when they see the grass they bite themselves and slowly chew and digest them in the grass-free time. Domestication of cattle domesticated in China about four thousand years of history. Shang period, is still a domestic cattle and hunting field