用作定语
▲～+n.
We have an urgent thing.我们有一件紧要的事情。
用作表语
▲S+be+～
He says the matter is urgent.他说这事很紧急。
▲S+be+～+prep.-phrase
She was urgent for the doctor to come.她催促医生快点来。
▲It is/was+～+that-clause
It is most urgent that the patient should get to hospital.那病人应该马上送医院。
