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And yaks are as tibetan as they come .

牦牛正是独具西藏特色的产物。

The yaks are common in mongolia and china .

牦牛在蒙古和中国很普通。

Born into a herding family , she tends 30 yaks on steep slopes near the karola pass .

她土生土长于牧人家庭，在卡惹拉山口附近的山坡照看着30头牦牛。

The kazakh are a semi-nomadic people who raise sheep and yaks for their main food source .

哈萨克人属于半游牧民族，他们饲养羊和牦牛，以此作为他们主要的食物来源。

Yaks produce fewer than 300 litres of milk a year , while cows yield 35 times as much .

牦牛一年产奶量不足300升，是奶牛的1/35。