VOA慢速英语:American History: U.S. Influence Begins to Extend Far Beyond its Shores

be busy doing忙着做

2.As one of the great nations, Lodge said, the United States must not fall out of this line of march.

fall out of从……跌落下来

He fell out of bed during the night.
晚上他从床上掉了下来。

I fall out with a lot of photographers over this.
就这一点，我和许多摄影家都闹翻了。

3.For ten years, local leaders attempted to establish a strong government.

attempt to企图，试图

例句：Henry attempted to secure the succession to the office.
      亨利试图继承这个职位。