We witnessed a threefold jump in sales volume during the period in question.

在此期间我们见证了销量三倍的跃升。

Hospitalizations have skyrocketed more than threefold since the beginning of the year.

自今年年初以来，住院治疗的人数猛增了三倍多。

I'm not sure the system could handle a twofold increase, let alone a threefold one.

我不确定系统能否承受两倍的增长，更不用说三倍了。

Have I ever! I'd say my stress levels have gone up threefold this year.

当然了！可以说我的压力值今年已经上升三倍了！

One survey revealed a threefold increase in breast cancer.

一项调查显示乳腺癌的发病率已是原来的三倍。

THREEFOLD INCREASE IN RECYCLING

再循环领域的三倍增长

The new features are threefold.

新特性包括三方面。

Thus is formed the threefold being.

从而形成三倍体存在。

Mr Koizumi's achievement is threefold.

小泉有三重成就。