black spot
UK
noun countable usually singular
■a place on a road that is considered to be dangerous because several accidents have happened there 交通黑点；易发生交通事故地段•This corner is an accident black spot.此拐角处易发生交通事故。 ■a place where something is very bad 不景气的地区；困难地区•an unemployment black spot失业率高的地区 |