A vaccine which can halt this suffering represents a quantum leap in healthcare in this country.

一种能终结这种苦楚的疫苗代表了该国在医疗保健方面的一次巨大进步。

It's a quantum leap I cannot make.

这是一个我不能做到的飞跃。

This is a quantum leap in Chinese consciousness.

这在中国人的灵魂深处是一次质的转变。

This discovery is a quantum leap for medical science.

这一发现是医学上的重大突破。

Was there suddenly a quantum leap in U.S. science literacy?

是不是美国人的科学素养突然有一个量子飞跃？