VOA慢速英语:Mother, Son, Co-Write Children’s Book on Autism

词汇讲解：

1. reserve vt.储备;保留
例句：He has put a reserve price on his house.
他已把他的房子定下最低价格。

2. explain vt. 说明…的原因
例句：I want to take this opportunity to explain.
我想借这个机会略加解释。

3. illustrate vt.说明;表明
例句：A simple example will serve to illustrate the point.
一个简单的例子可以说明这一点。

4. productive adj.富有成效的;多产的
例句：The age was productive of men of genius.
那个时代出天才。

5. encourage vt.鼓励，鼓舞
例句：He aims to encourage mutual understanding.
他的目的在于增进相互了解。