VOA慢速英语:Planetariums Take Viewers on a Trip Through Space

例句：The planetarium staff also prepared talks for radio broadcast.
      天文馆的工作人员还要准备讲稿给电台广播。

2.accuracy n.精确(性), 精确（程度），准确(性)

例句：I doubt the accuracy of your statement.
      我怀疑你的话的正确性。

3.complexity n.复杂性,错综复杂的状态

例句：a pay system of unnecessary complexity
      过度复杂的付款系统

      It is difficult to convey the sheer complexity of the situation.
      很难说清楚形势究竟有多复杂。

4.generally adv.一般地, 通常, 大体上, 广泛地, 普遍地

例句：We generally go to the sea for our holidays.
      我们通常去海边度假。

5.contain vt.包含; 容纳

例句：Whisky contains a large percentage of alcohol.
      威士忌的酒精含量极高。

      Rice contains protein and fat.
      大米含蛋白质和脂肪。

6.evolve vt.vi.演变; 进化

例句：Language is constantly and gradually evolving.
      语言在不断地缓慢发展。

      He has evolved a new theory.
      他已形成了一种新学说。

7.interactive adj.(指至少两个人或物)一起活动或互相合作的

例句：The psychotherapy is carried out in small interactive groups.
      这种心理治疗是在互动的小组之间进行的。

8.extraordinary adj.意想不到的；令人惊奇的；奇怪的

例句：It's extraordinary that he managed to sleep through the party.
      真想不到他竟然从聚会开始一直睡到结束。

      What an extraordinary thing to say!
      真是咄咄咄怪事！