5 sentences

1. 社会由不同的阶层组成。

   shè​huì yóu bù​tóng de jiē​céng zǔ​chéng.

   Society is composed of different strata.

   Source: Dong Chinese Dictionary

2. 这个阶层曾是该国的统治贵族。

   zhè gè jiē​céng céng shì gāi guó de tǒng​zhì guì​zú.

   This class was once the ruling nobility of the country.

   Source: Dong Chinese Dictionary

3. 古人常将社会阶层划分为士、农、工、商。

   gǔ​rén cháng jiāng shè​huì jiē​céng huà​fēn wéi shì, nóng, gōng, shāng.

   Ancient people often divided society into four classes: scholars, farmers, artisans, and merchants.

   Source: Dong Chinese Dictionary

4. 这种机制有助于调节社会各阶层的利益冲突。

   zhè zhǒng jī​zhì yǒu​zhù​yú tiáo​jié shè​huì gè jiē​céng de lì​yì chōng​tū.

   This mechanism helps reconcile conflicts of interest between different social strata.

   Source: Dong Chinese Dictionary

5. 贫富差距的扩大导致了社会阶层的严重分化。

   pín​fù chā​jù de kuò​dà dǎo​zhì le shè​huì jiē​céng de yán​zhòng fēn​huà.

   The widening wealth gap has led to a serious polarization of social classes.

   Source: Dong Chinese Dictionary