VOA慢速英语:The Global Problem of Preterm Births

1. define vt. 解释,给...下定义
例句：Do you know who defined man as a rational animal?
你知道是谁将人说成是有理智的动物的?

2. relate vt. 讲,叙述
例句：To him we related our troubles, asking his advice.
我们向他讲述了我们的困难,请他指导。

3. suffer vt. 遭受;经历
例句：He suffered many humiliations before he became a football star.
他在成为足球名将前受过许多屈辱。

4. attention n. 注意;注意力;专心
例句：Let me have your attention!
请注意听我讲话!

5. survival n. 幸存;残存
例句：The old man is a survival of the past age.
这老人乃上一个时代的遗老。

6. intensive adj. 加强的;密集的
例句：Wally was now out of danger and removed from intensive care. 沃利已经脱离危险，不再需要精心护理。

7. discovery n. 发现
例句：Dr. Fleming's discovery of penicillin occurred in 1928.
弗莱明医生发现青霉素是在一九二八年。