用作定语
▲～+n.
He is a desperate criminal.他是个亡命之徒。
They made a desperate attempt to save the company.他们为挽救公司作孤注一掷的努力。
The city is suffering a desperate shortage of water.这个城市严重缺水。
用作表语
▲S+be+～
The prisoners become desperate in their attempts to escape.囚犯们孤注一掷企图越狱。
The state of that country is desperate.那个国家的形势非常危急。
▲S+be+～+prep.-phrase
He's desperate for money.他极渴望得到钱。
▲S+be+～+to-v They're desperate to escape.他们急于想逃跑。
