VOA常速英语:Survey: Social Media Users are Happier, More Engaged

词汇讲解：

1. interactive adj. 交互的
例句：The psychotherapy is carried out in small interactive groups.
这种心理治疗是在互动的小组之间进行的。

2. commentator n. 评论员,时事评论员;注释者;实况广播员
例句：Television sports commentators repeat the same phrases ad nauseam.
电视体育解说员说来说去就是那么几句话,令人厌烦。

3. assert vt. 声称, 断言
例句：He asserted his ideas loudly and clearly.
他大声明确地说出自己的想法。

4. sociable adj. 随和的; 好交际的; 友善的
例句：Roger is a very sociable person.
罗杰是个非常好交际的人。

5. downright adv. 完全地
例句：That road is downright dangerous!
那条路危险透顶！

6. spill vt. 泄露机密
例句：He spilled it that Bill was their ringleader.
他透露比尔是他们的主谋。

7. trusting adj. 轻信的;轻易信赖别人的
例句：He was too trusting—or, to put it another way, he had no head for business.
他太轻信别人，或者换句话说，他没有商业头脑。

8. engage vt. 吸引;占用
例句：Housework engages much of her time.
家事占用她很多时间。

9. speculation n. 推断,推测;猜测
例句：Speculation was rife as to whom the prince might marry.
大家都在推测王子会娶谁。

10. double v. 是…的两倍, (使)加倍
例句：The baby doubled its weight in a year.
那婴儿一年中体重增加了一倍。