The feeding of dairy cows has undergone a revolution.乳牛的喂养方法发生了巨大的改变。He was afraid the revolution they had started would fail.他担心他们发起的大变革会遭遇失败。The nineteenth century witnessed a revolution in ship design and propulsion.1...
Money was a commodity she never thought about except in the abstract.钱对她来说就是个抽象的东西，她从不去想钱。I like dogs in the abstract, but I can't bear this one.一般来说我喜欢狗, 可是我不能容忍这一只.Consider the problem in the abstract.就事论事地考虑一下这个问...