VOA常速英语:Saving the Cross River Gorilla

2. endangered adj. 快要绝种的
例句：This island is maintained as a sanctuary for endangered species.
那个岛继续作为濒危物种的保护区。

3. classify vt.分类; 归类
例句：Librarians spend a lot of time classifying books.
图书馆工作人员花许多时间将书分类。

4. estimate n. 估计;估价;估计数
例句：The expert's estimate is that the painting is worth $3,000.
专家估计这幅画值三千元。

5. scatter v. 消散;分散;溃散
例句：The crowd scattered when the police charged.
当警察冲过来时,人群便散开了。

6. extinct adj. （动植物，物种灭）灭绝的, 绝种的
例句：Dinosaurs have been extinct for millions of years.
恐龙绝种已有几百万年了。

7. grant n. 补助金, 助学金, 津贴
例句：Students in this country receive a grant from the government.
这个国家的学生可得到政府的助学金。

8. convert vt. 转变,变换
例句：They converted the garage into a theater.
他们将车库改成戏院。

9. alternative n. 取舍, 抉择, 可供选择的事物
例句：What alternatives are there?
还有什么可选择的?

10. stabilize v. (使)稳定; (使)稳固
例句：They are eager to stabilize currencies.
他们急于稳定货币。