VOA慢速英语:AMERICAN HISTORY: Slavery in the American South

1. People forced prisoners of war to work for them.

work for 致力
例句：Comrade Yang will be in charge of that work for the time being. 
杨同志将暂时负责那项工作。

2. It is said the first known slaves lived more than five thousand years ago in the Sumerian society of what is now Iraq.

more than 多于
例句：Rob likes apples more than bananas. 
罗勃对苹果比对香蕉还喜欢。 

3. Most ancient people thought of slavery as a natural condition that could happen to anyone at any time.

at any time 随时
例句：If I can reciprocate at any time, please let me know. 
如果有要我效劳之事，请告知。 

4. So the Spanish and Portuguese began to bring in people from West Africa as slaves.

bring in 引进
例句：Those who have been left out, we will try to bring in. 
那些被遗漏的人，我们设法将他们引进。 

5. For example, a building was needed for cooking.

for example 例如
例句：For example, it can easily remember such things as: 
例如，它可以轻易地记住下面这些信息。 

6. He supervised, fed and clothed the people living on the property, including the slaves.

live on 依靠
例句：Chinese live on rice. 
中国人以大米为主食。 

7. This was true in the Northern colonies as well as the Southern ones.

as well as 也
例句：Boys as well as girls are taught cookery in school these days. 
现在学校里男女学生都学烹饪。 

8. As a result, the North came to depend on manufacturing and trade.

depend on 依靠
例句：You can depend on him to rise to the occasion, if need be.
你可依靠他来应付这个局面。