convenience; a favour (/break) for sb; special facilities ❍ 可是绅士们和商人们还没议定那“～”应该怎么一个开法，农民的肚子已经饿得不耐烦了。(《茅盾文集》Ⅶ—327) But the hungry bellies of the peasants couldn’t wait for the gentry and merchants to define what exactly they meant by “special facilities.”/这就给偷盗者大开了方便之门。(爱新觉罗·溥仪《我的前半生》146) This made things very easy for thieves.
方便之门fang bian zhi men
convenience
方便之门fānɡ biān zhī mén
指便利的门路。special facilities, a favor of sb., convenience, a break for sb.