VOA慢速英语:Why Sleep Apnea Raises Risk of Stroke, Heart Attack

词汇讲解：

1. snoring n. 鼻鼾，打鼾，鼾声
例句：Grandfather was snoring.
祖父在打呼噜。

2. apnea n. 呼吸暂停，无呼吸
例句：Obesity is a major risk factor for sleep apnea.
肥胖是呼吸暂停的主要危险因素。

3. specialist n. 专家，专科医生
例句：The local doctor couldn't tell what was wrong, so he sent her to see a specialist.
当地医生未能诊断出她是什么病, 所以他叫她去看专科医生。

4. stroke n. 中风
例句：She had a stroke and was unable to walk again.
她中风后再也不能走路了。

5. breathe v. 呼吸
例句：They came out of the tunnel and thankfully breathed the fresh air.
他们走出地道, 贪婪地吸着新鲜空气。

6. oxygen n 氧气，氧
例句：Oxygen is one of the basic elements of substance.
氧是物质的基本元素之一。

7. insufficient adj. 不足的,不够的
例句：His children were dwarfed by insufficient food.
他的儿女因营养不良而发育不全。

8. overwork v. 工作过度或时间过长
例句：I hope you’re not overworking that poor boy.
我希望你没有驱使那个可怜的男孩工作过度。

9. three-fold adj. 三倍的
例句：The number increased three -fold over the same period .
同时期数字上升了三倍。

10. severity n. 严重，剧烈
例句：The drug can reduce the frequency and severity of attacks.
这种药能降低发病次数和严重程度。

11. continuous adj. 连续的, 没有中断的
例句：The brain needs a continuous supply of blood.
大脑需要不断供给血液。

12. throat n. 咽喉, 嗓子
例句：He has a sore throat.
他喉咙痛。