A man's life is like a drama, and we can judge a drama only when the curtain drops.

人生如梦，一出戏演得如何，只有在幕落之时才可以下断语。

This new development expanded  government spending as well, essentially dropping the curtain on the  worst economic disasters in American history.

这一新发展也扩大了政府支出，基本上揭开了美国历史上最严重的经济灾难的帷幕。