1 sentence

1. 一天，他来到教室，突然意识到他把平时用的有氧运动音乐忘在家里了。

   yī​tiān, tā lái dào jiào​shì, tū​rán yì​shí dào tā bǎ píng​shí yòng de yǒu​yǎng​yùn​dòng yīn​yuè wàng zài jiā lǐ le.

   One day he arrived to class and realized he had left his regular aerobics music at home.

   Source: CCMatrix