3 sentences

1. 腹腔内包含许多重要的内脏器官。

   fù​qiāng nèi bāo​hán xǔ​duō zhòng​yào de nèi​zàng qì​guān.

   The abdominal cavity contains many important internal organs.

   Source: Dong Chinese Dictionary

2. 人的内脏器官大多由平滑肌构成。

   rén de nèi​zàng qì​guān dà​duō yóu píng​huá​jī gòu​chéng.

   Most human internal organs are composed of smooth muscle.

   Source: Dong Chinese Dictionary

3. 这种药物可能会对人体的内脏造成损害。

   zhè zhǒng yào​wù kě​néng huì duì rén​tǐ de nèi​zàng zào​chéng sǔn​hài.

   This medicine may cause damage to the body's internal organs.

   Source: Dong Chinese Dictionary