n.獸穴；集聚地

v.穴居

They lured the bear out of its den. 他們把熊從穴中誘出。

The lion lay asleep in its den. 獅子躺在洞里睡覺。

There is no den in the wide world to hide a rogue. 惡棍沒有藏身之地。

He has made his house a den of thieves. 他把自己的家變成了一個賊窩。

The police tracked the thieves to their den. 警察跟蹤小偷，直到他們的老窩。