2 sentences

1. 知更鸟在枝头婉转地鸣叫。

   zhī​gēng​niǎo zài zhī​tóu wǎn​zhuǎn de míng​jiào.

   A robin is singing melodiously on the branch.

   Source: Dong Chinese Dictionary

2. 夜莺在寂静的夜晚婉转地歌唱。

   yè​yīng zài jì​jìng de yè​wǎn wǎn​zhuǎn de gē​chàng.

   The nightingale sings melodiously in the quiet night.

   Source: Dong Chinese Dictionary