4 sentences

1. 物体表面非常光滑。

   wù​tǐ biǎo​miàn fēi​cháng guāng​huá.

   The surface of the object is very smooth.

   Source: Dong Chinese Dictionary

2. 动词的“体”表示动作的状态。

   dòng​cí de“ tǐ” biǎo​shì dòng​zuò de zhuàng​tài.

   The 'aspect' of a verb indicates the status of an action.

   Source: Dong Chinese Dictionary

3. 病人的身体表现出明显的康复征兆。

   bìng​rén de shēn​tǐ biǎo​xiàn chū míng​xiǎn de kāng​fù zhēng zhào.

   The patient is showing clear signs of recovery.

   Source: Dong Chinese Dictionary

4. 鱼的身体表面覆盖着一层薄薄的鳞。

   yú de shēn​tǐ biǎo​miàn fù​gài zhe yī céng báo báo de lín.

   The surface of a fish's body is covered with a thin layer of scales.

   Source: Dong Chinese Dictionary