Like Mr Kagan, Mr Brzezinski argues that no single power is ready to supplant it.

与卡根先生一样，兹比格涅夫先生坚称尚未有独立势力有实力替而代之，有所担当。

Then why is every single major power rushing to do business there today?

那么为什么现在每个大国 都争着去伊朗做生意呢？

Over the centuries we have fought to prevent Europe from falling under the dominance of a single power.

数百年来，我们一直努力阻止欧洲陷于单一强国的统治。

Did then a single power of my soul remain unexercised?

那么我的灵魂有没有一点力量没有发挥出来呢？

These have lenses with a single focal power tuned so that near objects come into focus.

这些镜头具有经过调整的单一焦度，因此可以聚焦近处的物体。

Homer referred to the three individual goddesses as a single power called Moira, and it was these three who manipulated the threads of every life.

荷马把这三位女神称为“摩伊赖”，这三位女神操纵着每一个生命的历程。