4 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. 柳树上有一只蝉正大声鸣叫。

   liǔ​shù shàng yǒu yī zhī chán zhèng dà​shēng míng​jiào.

   A cicada is chirping loudly in the willow tree.

   Source: Dong Chinese Dictionary

3. 金丝雀在笼子里欢快地鸣叫。

   jīn​sī​què zài lóng​zi lǐ huān​kuài de míng​jiào.

   The canary is chirping happily in its cage.

   Source: Dong Chinese Dictionary

4. 夏天的田野里，莎鸡在草丛中鸣叫。

   xià​tiān de tián​yě lǐ, shā​jī zài cǎo​cóng zhōng míng​jiào.

   In the summer fields, katydids chirp in the grass.

   Source: Dong Chinese Dictionary