2 sentences

1. 刷牙、用牙线洁牙、洗脸。

   shuā yá, yòng yá​xiàn jié yá, xǐ liǎn.

   Brush and floss your teeth and wash your face.

   Source: AI Challenger 2017

2. 当时她正在用牙线剔牙。

   dāng​shí tā zhèng​zài yòng yá​xiàn tī yá.

   She was flossing her teeth at the time.

   Source: AI Challenger 2017