它们正处在从乡村到大都市转变的初步过渡阶段，但是，不可否认的是，这是一个巨大的飞跃。

They serve as an initial step in the transition between the countryside and the metropolis; undeniably the most drastic leap.

youdao

这是一个巨大的飞跃，在几年之前电脑仅仅是一个可以大到塞下一个柜子，远远地锁在那些高挂着荧光灯，铺着白色瓷砖的电脑室里的东西。

That was a huge leap, when less than a decade earlier computers were still the size of filing cabinets, locked away in fluorescent-lit, white-tiled computer rooms.

youdao

直到十八世纪，英国出现了牙粉，这是牙膏史上的另一个巨大的飞跃。

There is then another huge gap in the history of toothpaste until the 18th Century, when toothpowder, or dentifrice, became available in Britain.

youdao

Particularly, if we took advantage of the fact that this is a virus that's easily transmitted orally and could you make a vaccine that would be effective orally as well, that would be a tremendous advantage, especially in children who don't like to get shots.

尤其是,如果我们可以利用这种病毒,很容易经口传播这一事实,制造出一种,可以通过口服而起到同样效果的疫苗,那么这将是一个巨大的飞跃,特别是对于那些不喜欢打针的孩子

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