dens

例句：

1. He thought of New York as a den of iniquity.
   他認為紐約是個藏污納垢之處。
2. The bar in the slum is a den of iniquity.
   這個貧民窟里的小酒吧是一個充滿罪惡的場所。
3. The lion lay asleep in its den.
   獅子躺在洞裡睡覺。
4. The police tracked the thieves to their den.
   警察跟蹤小偷，直到他們的老窩。

英文解釋：

名詞 den:

1. the habitation of wild animals
   同義詞：lair, den
2. a hiding place; usually a remote place used by outlaws
   同義詞：hideout, hideaway, den
3. a unit of 8 to 10 cub scouts
   同義詞：den
4. a room that is comfortable and secluded
   同義詞：den