"it was a hotbed of vice"
以上来源于: WordNet
N-COUNT If you say that somewhere is a hotbed of an undesirable activity, you are emphasizing that a lot of the activity is going on there or being started there. (不良活动的)温床 [with supp, usu N 'of' n] [强调]
...a state now known worldwide as a hotbed of racial intolerance.
...一个现已举世皆知的、作为种族歧视温床的国家.
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