复数： upheavals

Yet the success comes at a time of upheaval .

然而他们的成功却正值公司动荡时期。

Syria could well be ripe for upheaval .

叙利亚很可能是剧变时机成熟的时候了。

But not to do so would threaten social upheaval .

但如果不这样做，就将带来社会动乱。

The axis of upheaval has many members .

动荡轴心有很多的成员国。

Currency markets were in upheaval .

外汇市场也陷入了动荡。