adjective [原级] 权宜的；方便的；有利的
The curfew regulation is a temporary expedient made necessary by a sudden emergency. 宵禁令是应对突发事件时必要的临时权宜之举。
noun [抽象名词] 权宜之计；应急手段
The disease was controlled by the simple expedient of not allowing anyone to leave the city. 通过禁止任何人出城的简单应急办法使疾病得到了控制。
