But Not Long Ago

It has destroyed jobs quickly, but not long ago it was also creating them in unprecedented Numbers.

它能迅速的减少工作岗位，但不久后也会以前所未有的数量创造工作岗位。

It's hard to believe now, but not long ago economists were congratulating themselves over the success of their field.

现在说起来真叫人难以置信，但就是不久前，经济学家们还在为他们领域里取得的成就自行庆功摆好。

Computers were invented not long ago, but they are very useful for us.

电脑发明的历史虽然不长，但它们对我们却很有用。