a leap forward

• 跃进； 大变化； 大增长

a leap forward的用法和样例：

例句

1. In the last few years,this art has made a big leap.
   近几年来，这一艺术有了新的跃进。
2. If one day we can cure cancer, it would be a quantum leap in medicine.
   假如有一天我们能治好癌症，那是医药上的重大跃进。
3. This time I noticed a great change in her.
   这次我注意到她发生了很大变化。
4. By the end of the novel, Pip has changed a lot.
   小说结尾时，皮普有了很大变化。