慢速英语:American History: Fear Takes Hold During the Great Depression

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例句：He was an expert on ancient Chinese astronomical literature.
      他是研究中国古代天文学文献的专家。

2.daylight n.日光, 白昼

例句：We'll keep on driving while there's still daylight.
      趁着天亮, 我们继续往前开车。

3.resist vt.vi.使用武力阻止(某事)发生[取得成功]; 抵抗; 对抗

例句：He could resist no longer.
      他再也抵抗不住了。

4.executive a.执行的,行政的

例句：The routine office work had all been delegated to his executive staff.
      一般的办公室工作都已经交给了他的执行人员。

5.rarely adv.不常, 很少地, 难得地

例句：She rarely went anywhere except to her office.
      她除了去办公室以外, 很少去别的地方。