VOA慢速英语:American History: Lyndon Johnson Becomes President

 词汇讲解：

1. murder vt.谋杀
例句：She murdered her husband with a knife.
她用刀杀害了丈夫。

2. appoint vt.任命, 委派；确定, 指定; 约定
例句：He was appointed secretary.
他被任命为秘书。

3. volunteer v. 自动提供, 自愿效劳
例句：My friend volunteered an interesting piece of news.
我的朋友自动说了一则有趣的消息。

4. threat n. 威胁, 恐吓
例句：His threats are just talk. Don't worry!
他的威胁只不过是虚张声势的空话而已, 不要担心！

5. bar vt. 排斥，排挤，使在外，除去；禁止，不准
例句：They barred her participating.
他们禁止她参加。

6. absent adj. 缺席的, 不在场的
例句：At times he would be absent for a couple of days.
他有时会离开几天。

7. disqualify vt.使无资格, 使不合格, 使不能
例句：His youth disqualified him from getting the job.
他太年轻, 因而没能得到这份工作。

8. persuade vt. 使某人相信; 说服,劝服
例句：The salesman persuaded us to buy his product.
那个推销员说服了我们买他的产品。

9. abundance n. 大量, 充足
例句：There was an abundance of corn last year.
去年玉米丰收。

10. futile adj. 无效的, 无用的, 无意义的
例句：Their efforts to revive him were futile.
他们对他抢救无效。

11. inaugural adj. 就职的, 就任的
例句：His inaugural speech was very inspiring.
他的就职演说很鼓动人心。

12. approval n. 批准, 认可
例句：The new proposals have won the approval of the board.
新建议得到董事会的认可。