迫切性的英文：
urgency

Used to add emphasis or urgency to a request or statement
用以加强请求或陈述的语气或迫切性)

Potassium manuring may be less critical in continuous grass farming than in ley farming
在多年生牧草地施用钾肥的迫切性比短期草地要小些。

Social research nowadays has a practical urgency surpassing even that of cancer research
当今社会研究的现实迫切性甚至超过对癌症的研究。

The latest injustices reinforced the popular urge to revolt.
最近的不义行动激化了人民发动起义的迫切性。

Suddenly the telephone rang again with that same note of urgency
电话铃猛地又响了，依然是那么急！

I am afraid you have not appreciated the urgency of the matter.
恐怕你还没有意识到这件事的紧迫性。

Used to add emphasis or urgency to a request or statement
用以加强请求或陈述的语气或迫切性)

Work should be done in order of importance and urgency.
工作应分轻重缓急。

We must deal with all these properly in their order of urgency
对于这些，我们必须分别先后缓急，给以正当的解决。