乳牛的喂养方法发生了巨大的改变。The feeding of dairy cows has undergone a revolution.不能既想卖乳牛,又想喝牛奶.You cannot sell the cow and sup the milk.大多数乳牛约10个月后就不再有奶了.Most cows run dry in about 10 months....
It was soon replaced by chloroform.不久它被氯仿所代替.The organics are extracted with chloroform and weighed.用氯仿将有机质提取出来并称重.Already the hospitals were worrying about the scarcity of quinine, calomel, opium, chloroform and iodine....