3 sentences

1. 了解历史背景对理解这部小说很重要。

   liǎo​jiě lì​shǐ bèi​jǐng duì lǐ​jiě zhè bù xiǎo​shuō hěn zhòng​yào.

   Understanding the historical background is important for understanding this novel.

   Source: Dong Chinese Dictionary

2. 许多历史学家致力于研究文革的历史背景。

   xǔ​duō lì​shǐ​xué​jiā zhì​lì yú yán​jiū Wén​gé de lì​shǐ bèi​jǐng.

   Many historians are dedicated to studying the historical background of the Cultural Revolution.

   Source: Dong Chinese Dictionary

3. 这件古董很有历史背景，曾是宫廷里收藏的艺术珍品。

   zhè jiàn gǔ​dǒng hěn yǒu lì​shǐ bèi​jǐng, céng shì gōng​tíng lǐ shōu​cáng de yì​shù​zhēn​pǐn.

   This antique has a rich historical background and was once a precious work of art in the imperial palace collection.

   Source: Dong Chinese Dictionary