1. However, the collective smoke from thousands of factories, over the past two centuries, has caused enormous increases in air pollution levels worldwide.
    但是，在过去的两个世纪中，从千万家工厂排放出的烟尘已大大加剧了全球大气的污染度。

2. Despite their short time on Earth, however, people have brought about enormous changes to the surface of the planet — changes far out of proportion to the interval of time they have occupied it.
    然而，尽管在地球上的时日尚短，人类却已给地球表面带来了巨大的变化——这些变化与人类占据地球的短暂时间相比，是远远不成比例的。

3. A: Yes, it was historic not only because it involved an enormous number of workers, but because it was led by the newlyfounded Communist Party.
    A：是的，那是一场有历史意义的大罢工，不仅仅是因为有大量工人的参与，而且还因为那场罢工是由新成立的共产党领导的。

4. Squeezing through a cleft in the rocks, the pot-holers arrived at an enormous cavern, the size of a huge concert hall.
    洞穴探险者从岩石缝里挤身过去，来到一个巨大的洞里，其大小相当于一个音乐厅。

5. Soapy entered it, sat down at a table and ate a beefsteak and an enormous apple-pie.
    苏比进去坐在餐桌旁，吃了一份牛排，一大份苹果馅饼。

6. So what should responsible persons do when confronted with the necessity of such an enormous decision?
    那么，作为负责任的人，在需要做出这样大的决定时该怎么办呢？

7. One student from the Brazilian South succeeded in stuffing two enormous suitcases to their capacity, and had to cope with her cabin luggage as well.
    一个来自巴西南部的学生把2个大箱子塞得满满的，此外，还得考虑她随身携带的行李。

8. I had all the usual symptoms of someone giving up smoking: a bad temper and an enormous appetite.
    戒烟者通常具有的所有症状我都占全了：脾气暴躁，食欲旺盛。

9. It had been purchased by a local authority so that an enormous pie could be baked for an annual fair.
    某地方当局买下它用来焙制一个巨大的馅饼为一年一度交易会助兴。

10. I had all the usual symptoms of someone giving up smoking: a bad temper and an enormous appetite.
    我具备了戒烟者通常表现出来的所有症状：脾气暴躁和食欲旺盛。