4 head bulls of each of small - type widty - forehead cattle (Bos Frantalis, WF)and Yunnan zebu (YZ) were studied to evaluate the beef performance.是什么意思_4 head bulls of each of small - type widty - forehead cattle (Bos Frantalis, WF)and Yunnan zebu (YZ) were studied to evaluate the beef performance.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句