4 sentences for 戒 (jiè — abstain)

1. 他已经戒酒三年了。

   tā yǐ​jīng jiè jiǔ sān nián le.

   He has been sober for three years.

   Source: Dong Chinese Dictionary

2. 我以为你戒了。

   wǒ yǐ​wéi nǐ jiè le.

   I thought you quit.

   Source: OpenSubtitles

3. 为了身体健康，他已经决定彻底戒烟了。

   wèi​le shēn​tǐ jiàn​kāng, tā yǐ​jīng jué​dìng chè​dǐ jiè yān le.

   For the sake of his health, he has decided to quit smoking for good.

   Source: Dong Chinese Dictionary

4. 这家戒毒中心专门帮助瘾君子摆脱毒瘾。

   zhè jiā jiè dú zhōng​xīn zhuān​mén bāng​zhù yǐn​jūn​zǐ bǎi​tuō dú​yǐn.

   This rehabilitation center specializes in helping addicts overcome drug addiction.

   Source: Dong Chinese Dictionary