【推荐2】词性转换
1. convince vt.使相信；使确信；说服→________________adj.有说服力的；令人信服的→________________adj.确信的；坚信不疑的
2. convention n. 惯例；习俗→________________ adj.传统的；习惯的
3. expand vt.&vi.扩大；增加 vt.扩展；发展（业务）→________________ n. 扩大；膨胀
4. real adj.真实的→________________ v. 实现→________________ n. 现实；实际情况；事实
5. extend v. 使延长；扩大→________________ n. 扩建部分；扩大；电话分机
6. nutrition n. 营养；滋养→________________ adj.营养（物）的→________________ adj.有营养的；营养丰富的
7. poor adj.贫穷的→________________ adv.糟糕地；不适→________________n. 贫穷；贫困
8. consumption n. 消耗；消耗量；消费→________________ v. 消耗；耗费→________________ n. 消费者

【推荐2】Mexico and Colombia are infamous for their d_______ dealers, some of whom even have submarines and airplanes as means of transport. (根据首字母单词拼写)