historic leap

• 历史性飞跃

historic leap的用法和样例：

例句

1. The living standard of the Chinese people as a whole has undergone a historical leap from a subsistence level to the level of moderate prosperi ty.
   人民生活水平的中国全国人民经历了历史性飞跃从一个糊口的水平温和普罗斯佩里性。