基本解释牦牛同根派生 英汉例句She told her parents about the yeti killing the yaks.她告诉父母雪人杀死了牦牛。The nutritional metabolic disease in yaks was associated with a trace element deficiency of seasonal dynamics.牧草微量元素含量的季节性变化可能是牦牛营养代谢疾病的主要原因。