ㄩㄢㄙㄡˇyuānsǒu

渊薮
  1. 比喻事物聚集聚集草叢聚集)​。 罪惡淵藪」、奇妙幻想淵藪」。

lit. abyss and marsh, meeting place of fish and beast, fig. breeding ground of crime, robbers' hide-out, den of thieves, hotbed of vice, sink of iniquity