加急的英文：
(v) require urgent measures to handle a matter

require是什么意思：
v. 需要；要求，命令

Is the requirement compulsory?
必须按这个需求做吗？

In practice, this will often require a prioritization of your job requirements.
实务上，这往往需要重新调整工作的优先顺序。

All systems requiring accurate timing will require a crystal.
所有需要精确定时的系统都要用晶体。

urgent是什么意思：
adj. 紧急的；急迫的

The money was most urgently required.
钱要得很急。

Something urgent have come up.
发生了紧急的事情。

An urgent message was radioed to us this evening.
紧急消息是今晚用无线电传送给我们的。

measures是什么意思：
n. 测量，量度；措施；程度；尺寸
v. 测量；估量，权衡

landscaping measure
景观美化措施

This is a measure of dispersion.
这是量度离差的一个方法。

skewness is a statistical measure of the uniformity of the distribution of a group of measures
偏态是对一组分布均匀性测量的统计度量。