正文

VOA慢速英语:Scientists: Monkeys Used Raft to Cross Ocean

2016-04-29来源:VOA

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词汇讲解：

1. 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。

2. variety n.多样; 种类; 杂耍; 变化
例句：This variety of controls contributed to a broadening use of the toolbar.
这种控件变体扩展了工具栏的用途。

3. permit vt.许可，准许; 默许
例句：An enlightened government should permit the free expression of political opinion.
一个开明的政府应当允许自由发表政见。

4. discovery n. 发现，发觉; （剧情的）发展; 被发现的事物
例句：The discovery is due to Newton.
该发现应归功于牛顿。