慢速英语:Protect Your Privacy While Having Fun with Facebook Quizzes

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1. compare vt.比较，对照
例句：Urban density data are difficult to compare among countries.
各国的城市人口密度数据是难以进行比较的。

2. explain vt.讲解，解释
例句：He made up a story to explain why he was absent.
他编造了一个故事为他的缺席辩解。

3. change vt.改变，变更; 交换
例句：People like to change things around to suit themselves.
人们喜欢改变周围的事物，使之适合自己。

4. receive vt.收到; 接待; 接到
例句：Nothing is more important than to receive education.
没有比接受教育更重要的事。

5. permission n.允许; 批准，正式认可
例句：Must I ask your permission?
我是否需要征得你的同意？