堕落

tā yǐ duò luò chéng xī dú zhě

他已堕落成吸毒者。

He has degenerated into a junkie.

tā men dào dé sàng shī jí jìn duò luò yǐ jīng chòu míng yuǎn yáng le

他们道德丧失，极尽堕落，已经臭名远扬了。

They are immoral and depraved, and have become notorious.

tā zěn me huì duò luò dào zhè zhǒng dì bù ne

他怎么会堕落到这种地步呢？

How could he sink to such depths?