an action that is useful or necessary for a particular purpose, but not always fair or right 权宜之计;应急办法 The disease was controlled by the simple expedient of not allowing anyone to leave the city. 采取了禁止所有人出城的简单应急办法,使疾病得到了控制。
Word Originlate Middle English: from Latin expedient- ‘extricating, putting in order’, from the verb expedire ‘extricate (originally by freeing the feet), put in order’, from ex- ‘out’ + pes, ped- ‘foot’. The original sense was neutral; the negative sense, implying disregard of moral considerations, dates from the late 18th cent.