VOA慢速英语:Steps Toward Drought-Resistant Crops, 'Designer' Rice

2. closure n. 停业，关闭；倒闭 ;结束
例句：A story was going round that the factory was in line for closure.
关于这家工厂很可能关门的说法在到处流传。

3. discover vt.发现；碰见, 撞见；了解到, 认识到, 发觉
例句：When returning back, he discovered the room to be in disorder.
回家后, 他发现屋子里乱七八糟。

4. evolve v. 演变; 进化
例句：Language is constantly and gradually evolving.
语言在不断地缓慢发展。

5. analyze vt.〈美〉分析, 分解, 解释
例句：The teacher tried to analyze the cause of our failure.
教师设法仔细分析我们失败的原因。

6. variety n.品种, 种类
例句：This variety of dog is very useful for hunting.
这种狗对狩猎很有用。

7. identify vt. 认出, 识别
例句：She identified her son among a lot of children.
她在许多孩子中认出了自己的孩子。

8. yield n. 产量, 收益
例句：The yields on his shares have increased in this year.
今年他的股票红利增加了。

9. resistance n. 抵抗力;抗性;耐性
例句：I catch colds frequently because my resistance is low.
我经常得感冒,因为我抵抗力差。

10. breed vt.饲养, 培养
例句：They used to breed fish in the reservoir.
他们过去一直在水库养鱼。