Children were not colour-coded at all until the early 20th century: in the era before domestic washing machines all babies wore white as a practical matter, since the only way of getting clothes clean was to boil them.
直到20世纪初，儿童才开始被按颜色进行区分：在家用洗衣机出现之前的时代，所有婴儿都穿白色衣服，这在实际中是合理的，因为当时唯一清洁衣物的方法就是煮沸。
The man is there to feed the dog, and the dog is there to keep the man away from the machines.
这个人在那里是为了喂狗，而狗在那里则是为了阻止人靠近机器。
Davidson’s article is one of a number of pieces that have recently appeared making the point that the reason we have such stubbornly high unemployment and declining middle-class incomes today is largely because of the big drop in demand because of the Great Recession, but it is also because of the advances in both globalization and the information technology revolution, which are more rapidly than ever replacing labor with machines or foreign workers.
戴维森的文章是最近几篇论述的一个例子，这些文章指出，我们如今之所以面临顽固的高失业率和中产阶级收入下降，主要原因是由于大萧条导致的需求大幅下降，但同时也是由于全球化和信息技术革命的进展，这两者正以前所未有的速度用机器或外国工人取代劳动力。
Certain jobs have gone away for good, outmoded by machines.
某些工作已经一去不复返了，被机器淘汰了。
In short, these are the types of jobs that machines can perform much better at than human beings.
简而言之，这些是机器比人类做得更好的工作类型。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。