1.financial crisis 金融危机

例句:This incident led to the breakout of the global financial crisis.
这一事件引致全球金融危机的爆发。

2.paper money 纸币

例句:Are you familiar with foreign paper money?
你对外国纸币熟悉吗？

3.once again 再一次

例句:Once again I breathed as a free man.
我又能像个自由人一样呼吸了。

4.less than 少于

例句:Peterson was let go after less than two years.
不到两年彼得森就被解雇了。