VOA慢速英语:Solar Powered Plane Starts World Tour

词汇讲解：

1. include vt.包括; 包含
例句：I have continued to aim to include all relevant references. 
我继续不断地收集这个领域中所有有关参考文献。 

2. 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。 

3. achieve vt.取得; 获得; 实现
例句：He stretched himself to achieve better results in his work. 
他尽心竭力,以求工作更有成效。 

4. broadcast vi.播放节目; 参加电台、电视节目的演出; 发送传递信号，传播
例句：The concert was broadcast by relay. 
这场音乐会是实况转播的。