1.
Interpreting Margaret Atwood s Life before Man;
解读阿特伍德小说《人类以前的生活》
2.
A million years ago, there were animals here before man came.
一百万年前，在还没有出现人类以前，这里就有动物。
3.
The astronauts faced risks on the moon never before met by man.
宇宙航行员在月球上所冒的危险，是人类以前从来没有遇见的。
4.
former genus of primitive apelike men now Homo erectus.
以前为原始的类猿人现在为直立人。
5.
Before man there was nothing.
在人类出现以前什么都不存在。
6.
This is a precondition for the continuity of the human race.
生儿育女是人类得以延续的前提条件。
7.
That is what men and society were before the division into classes.
在没有分化为不同的阶级以前，人类和人类社会就是如此。
8.
Beginning nearly 10,000 years ago, man adopted animal husbandry practices.
约在一万年以前，人类就开始从事畜牧业的工作。
9.
A Summary of the Main Achievements of the Mankind Origin Study and the Prehistoric Archaeology in Yunnan;
1949年以来云南人类起源与史前考古的主要成就
10.
Analysis of Natural-class Museums Established by Foreigners in China before 1949
1949年以前外国人在华创办的自然类博物馆探析
11.
an age ago
一代人以前, 多年以前
12.
In various unrevealed capacities he had come in contact with such people.
他以前曾以各种未透露的身份与这一类人接触过。
13.
Shall we say we have about 80 years before our civilization collapse?
我们是否可以说，在人类文明毁灭以前，我们还有80左右年时间？
14.
A long, long time ago, at the very beginning of civilized life people began to keep cattle.
在很久很久以前，人类文明刚刚开始的时候，人们就开始饲养牲畜了。
15.
Never before have so many people keen to engaged in producing goods just for the comfort of man.
以前从来没有这么多的人，只是为了人类的舒适而从事物品的生产。
16.
possible early Homo sapiens represented by a cranium found in the Transvaal; formerly considered a separate species.
可能是最早的人类，以在（南非）德兰士瓦发现的头盖骨为代表；以前被认为是独立的种类。
17.
Millions of years ago, early men used a stick, a large piece of wood and dry leaves to make a fire.
几百万年以前，早期人类用木棍，一大块木头和干树叶生火。
18.
Before, people couldn't get enough pork, but had enough beans and vegetables.
以前，人们没有足够的肉吃，但是有足够的豆类和蔬菜。