a leap forward的用法和樣例：
例句
- In the last few years,this art has made a big leap.
近幾年來(lái)，這一藝術(shù)有了新的躍進(jìn)。 - If one day we can cure cancer, it would be a quantum leap in medicine.
假如有一天我們能治好癌癥，那是醫藥上的重大躍進(jìn)。 - This time I noticed a great change in her.
這次我注意到她發(fā)生了很大變化。 - By the end of the novel, Pip has changed a lot.
小說(shuō)結尾時(shí)，皮普有了很大變化。
