2. swap v. 交换（东西）
例句：I will swap you my bicycle for your radio.
我想拿我的自行车换你的收音机。
3. reveal vt. 显示; 露出
例句：Research has revealed that he is a monster of iniquity.
调查结果显示他是一个不法之徒。
4. purchase vt. 购买
例句：He purchased this stamp at an auction.
他在拍卖会中购得这枚邮票。
5. motivation n. 动力;动机;诱因
例句：The motivation for the decision is the desire to improve our service to our customers.
做这决定的原因是为了改善我们对顾客的服务。
6. outcry n. 高声叫喊, 尖叫;强烈抗议
例句：An increase in taxes produced an outcry from the voters.
增加税收引起了选民们强烈抗议。
7. fulfill vt. 履行(诺言等);完成(任务等);实现
例句：He always fulfills his promises.
他总是履行自己的诺言。
8. majority n. 多数, 大多数; 半数以上
例句：The majority of his books are kept upstairs.
他的大部分书收藏在楼上。
9. perceive vt. 察觉;感知
例句：I perceived a man enter the house.
我看到一个人走进这间房子。
10. persuade vt. 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。
