VOA常速英语:Nicotine Enhances Effects of Cocaine

词汇讲解：

1. highlight vt. 强调, 突出, 使显著
例句：The President highlights the importance of his visit to China.
总统强调访问中国的重要性。

2. addiction n. 瘾，吸毒成瘾
例句：He is now fighting his addiction to alcohol.
他现在正努力戒酒。

3. adolescent n. 青少年
例句：The audience were mostly adolescents.
听众几乎都是年轻人。

4. sequence n. 有关联的一组事物, 一连串
例句：He had to attend a sequence of meetings.
他得参加一系列会议。

5. inject vt.注射, 注入
例句：The doctor has injected him under the skin.
医生已给他皮下注射了一针。

6. pronounced adj. 明显的;显著的
例句：She speaks with a pronounced French accent.
她说话有明显的法国口音。

7. expose vt.曝光；暴露; 显露；揭露, 袒露
例句：They consider it almost a crime to expose children to violence and sex on TV.
他们认为让儿童接触暴力和色情电视节目几乎是一种犯罪行为。

8. confirmation n. 证实,证据,确认
例句：The police are seeking independent confirmation of certain details of the story.
警方正在寻找案件某些细节的独立证据。

9. refine vt. 使文雅高尚; 使去掉粗俗言行; 使变得完善
例句：He has refined his taste and manners.
他已使自己的趣味爱好和举止仪态变得高雅完美。

10. approach n. 方法，方式；手段；步骤；态度
例句：His approaches to the problem are wrong.
他处理这个问题的方法是错误的。