正文

VOA慢速英语:Peshawar Attack Survivors Learn Nanotechnology in US Visit

2015-08-20来源:VOA

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词汇讲解：

1. expand vt.扩张; 使…变大
例句：I want to expand the medical program and the recreation program.
我要扩充医药工作和康乐活动。

2. explore vi.勘查，探测
例句：In this chapter, we explore how and why.
在本章中我们将探讨如何消除和为什么要消除它们。

3. representative adj.有代表性的; 典型的; 代议制的
例句：Beijing is a representative Chinese city.
北京是一个典型的中国城市。

4. change vt.改变，变更
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。

5. invention n.发明; 发明物; 捏造
例句：His invention brought him glory.
他的发明给他带来了荣誉。