4 sentences

1. 经济与文化已经连为一体。

   jīng​jì yǔ wén​huà yǐ​jīng lián wéi yī​tǐ.

   Economy and culture have been integrated into one.

   Source: Dong Chinese Dictionary

2. 神性与人性在基督身上融为一体。

   shén​xìng yǔ rén​xìng zài Jī​dū shēn​shang róng wéi yī​tǐ.

   Divinity and humanity are integrated in Christ.

   Source: Dong Chinese Dictionary

3. 这是一家集工、农、贸为一体的企业。

   zhè shì yī jiā jí gōng, nóng, mào wéi yī​tǐ de qǐ​yè.

   This is an enterprise integrating industry, agriculture, and trade.

   Source: Dong Chinese Dictionary

4. 此事关系重大，望一体知悉。

   cǐ shì guān​xi zhòng​dà, wàng yī​tǐ zhī​xī.

   This matter is of great importance; please all take note.

   Source: Dong Chinese Dictionary