CRI听力:CES in Vegas

2. portable adj. 便于携带的; 手提式的; 轻便的
例句：The portable device easily knocks down.
这种轻便装置容易拆卸。

3. contrast n. 对比, 对照
例句：The black paint on the door provides a contrast for the white walls.
门上的黑漆与白墙形成对比。

4. outdo vt. 胜过
例句：We outdid our competitors by offering a better product at a lower price than theirs.
我们以更低的价格提供更多的产品而战胜了竞争对手。

5. sharp adj. 轮廓鲜明的; 明显的; 清晰的
例句：There were sharp differences of opinion between the two.
两者的意见存在着明显的分歧。

6. eliminate vt. 消除, 排除；忽略；淘汰
例句：She went through the typescript carefully to eliminate all errors from it.
她认真检查了打字稿,排除了所有的错误。

7. unveil vt. 使公之于众;揭露
例句：The plan was unveiled with the approval from the Minister.
经部长同意该计划被公之于众。

8. blur vi. (使)变模糊
例句：Dust blurred my vision.
灰尘模糊了我的视线。

9. charge vt. 使充电
例句：He is charging a storage battery.
他在为蓄电池充电。

10. swap v. 交换
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。