2 sentences

1. 这首歌表达了作者内心深处最纯真的爱。

   zhè shǒu gē biǎo​dá le zuò​zhě nèi​xīn shēn​chù zuì chún​zhēn de ài.

   This song expresses the purest love in the author's heart.

   Source: Dong Chinese Dictionary

2. 他那纯真的笑容给人们留下了深刻的印象。

   tā nà chún​zhēn de xiào​róng gěi rén​men liú​xià le shēn​kè de yìn​xiàng.

   His innocent smile left a deep impression on people.

   Source: Dong Chinese Dictionary