4 sentences

1. 这部小说很难读懂。

   zhè bù xiǎo​shuō hěn nán dú​dǒng.

   This novel is difficult to understand.

   Source: Tatoeba

2. 这篇文章写得简单明了，容易读懂。

   zhè piān wén​zhāng xiě de jiǎn​dān míng​liǎo, róng​yì dú​dǒng.

   This article is written simply and clearly, making it easy to understand.

   Source: Dong Chinese Dictionary

3. 这篇课文写得很白，小学生都能读懂。

   zhè piān kè​wén xiě de hěn bái, xiǎo​xué​shēng dōu néng dú​dǒng.

   This text is written in very plain language; even elementary school students can understand it.

   Source: Dong Chinese Dictionary

4. 为了读懂这篇论文，我必须先查阅相关的专业术语。

   wèi​le dú​dǒng zhè piān lùn​wén, wǒ bì​xū xiān chá​yuè xiāng​guān de zhuān​yè shù​yǔ.

   To understand this paper, I must first look up the relevant technical terms.

   Source: Dong Chinese Dictionary