3 sentences

1. 他一咬牙，终于做出了决定。

   tā yī yǎo yá, zhōng​yú zuò chū le jué​dìng.

   Gritting his teeth, he finally made his decision.

   Source: CCMatrix

2. 咬咬牙进来吧。

   yǎo yǎo yá jìn lai ba.

   Grit your teeth and come inside.

   Source: AI Challenger 2017

3. 你别对我咬牙切齿。

   nǐ bié duì wǒ yǎo​yá​qiè​chǐ.

   Don't grit your teeth at me.

   Source: OpenSubtitles