◎來(lái)龍去脈láilóng-qùmài
[pedigree;origin and course of development;cause and effect; ins and outs; sequence of actions; ways and wherefores; whence and wither] 原是過(guò)去風(fēng)水先生的說(shuō)法，認為山勢如龍，從頭到尾都有血脈連貫?，F在常用來(lái)比喻事物的來(lái)歷或事情的前因后果
文件的來(lái)龍去脈
m.