VOA慢速英语:Scientists Continue Their Search for Better Treatments for Multiple Sclerosis – and a Cure

词汇讲解：

1. sign n. 体征
例句：Blood in phlegm can be a sign of lung cancer.
痰中带血可能是肺癌的体征。

2. symptom n.症状
例句：The doctor told her to watch out for symptoms of measles.
医生叫她注意麻疹出现的症状。

3. sensation n. 知觉
例句：He lost all sensation in his legs through cramp.
他的腿部因抽筋而失去知觉。

4. progressive adj. 不断前进的, 有进展的, 逐渐上升的
例句：It was a progressive disease and he would suffer more and more.
病情逐渐加剧, 他将忍受越来越大的痛苦。

5. scar n. 伤痕, 伤疤; 精神上的创伤
例句：The wound healed without leaving a scar.
伤好了, 没有留下伤疤。

6. diagnose vt.诊断
例句：The doctor diagnosed my illness as a rare skin disease.
医生诊断我的病为罕见的皮肤病。

7. navigate vt.(从海上、空中等)横越;横渡;飞跃
例句：He navigated the plane through the clouds.
他驾驶飞机穿越云层。

8. noteworthy adj. 值得注意的;显著的;重要的
例句：His reign has never been considered particularly noteworthy.
从没有人认为他统治的时期特别值得关注。

9. repair vt.修理; 修补
例句：She was repairing a glove when I came in.
我进去时, 她在补手套。

10. suspect vt. 猜疑(是), 怀疑(是), 觉得(是)
例句：I suspect him to know everything about that.
我猜想那件事他全都知道了。

11. ailment n. 疾病(尤指慢性病), 不适
例句：His ailments include a mild heart attack and arthritis.
他患有轻度心脏病和关节炎。

12. empower vt.授权, 准许
例句：The new law empowered the police to search private house.
新法律给予警察搜查私人住宅的权利。