翻两番的英文：
quadruple

I am certain that by the end of the century we can surpass the goal of quadrupling the GNP.
我相信到本世纪末我们肯定会超过翻两番的目标。

Will we be able to quadruple the GNP by the end of the century?
到本世纪末翻两番有没有可能

The first goal we set was to quadruple the GNP and achieve comparative prosperity by the end of the century.
第一步，到本世纪末翻两番，达到小康水平。

To reach the goal of quadrupling GNP by the end of the century we shall have to do solid work.
本世纪末实现翻两番，要稳扎稳打。

The real, permanent solution is to quadruple the GNP and develop the economy.
翻两番、把经济搞上去才是真正治本的途径。

What will the political situation be like once we have quadrupled the GNP?
如果实现了翻两番，那时会是个什么样的政治局面

Quadrupling the GNP will be a significant achievement in another way too.
翻两番还有个重要意义，就是这是一个新的起点。

How can we quadruple the GNP with such meagre imports and exports?
这么一点进出口，就能实现GDP翻两番呀？

If we go on this way, we shall be able to reach the goal of quadrupling China's GNP by the end of the century.
这样发展下去，到本世纪末翻两番的目标一定能够实现。

Every day we have to brave winds and waves, but I am convinced that we can reach the goal of quadrupling the GNP.
天天在风浪中前进，但翻两番的任务一定能完成。

the quadruple of... ...
...的四倍

That was a quadruple murder.
那是一次四尸命案。

20 is the quadruple of 5.
20是5的四倍。

The price has quadrupled in the last few years.
近几年来价格已经翻了两番。

Halving the repeater spacing made it possible to quadruple the bandwidth.
将增音机间距减少一半，能使宽带增加3倍。