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....
Politicians have debased the meaning of the word "freedom"政客们贬低了“自由”一词的意义。Art has real meaning when it helps people to understand themselves.当艺术有助于人们了解自身的时候才有真正的意义。People use scientific terms with no clear idea of their ...