exigency

Administrative exigencies [=needs] have led to some changes in the structure of the committee.行政上的紧急情况导致了委员会结构上的一些调整。

the exigencies of war战争的迫切需求

They are motivated by political exigency [=necessity] rather than by principle.他们是出于迫切的政治需要，而非资金需求。