1 sentence

1. 咖啡中含有大量的咖啡因，可以提神醒脑。

   kā​fēi zhōng hán​yǒu dà​liàng de kā​fēi​yīn, kě​yǐ tí​shén xǐng​nǎo.

   Coffee contains a lot of caffeine, which can help refresh the mind.

   Source: Dong Chinese Dictionary