4 sentences

1. 对于这些历史遗留问题，我们必须加以解决。

   duì​yú zhè​xiē lì​shǐ yí​liú wèn​tí, wǒ​men bì​xū jiā​yǐ jiě​jué.

   We must resolve these historical issues.

   Source: Dong Chinese Dictionary

2. 由于时间紧迫，这件工作还遗留了一些问题。

   yóu​yú shí​jiān jǐn​pò, zhè jiàn gōng​zuò hái yí​liú le yī​xiē wèn​tí.

   Due to time constraints, some issues still remain with this work.

   Source: Dong Chinese Dictionary

3. 医生正在为病人处理手术后遗留的肠粘连问题。

   yī​shēng zhèng​zài wèi bìng​rén chǔ​lǐ shǒu​shù hòu yí​liú de cháng nián​lián wèn​tí.

   The doctor is treating the patient for intestinal adhesions left after surgery.

   Source: Dong Chinese Dictionary

4. 这是先辈遗留下来的优良传统。

   zhè shì xiān​bèi yí​liú xià​lai de yōu​liáng chuán​tǒng.

   This is a fine tradition handed down from our ancestors.

   Source: Dong Chinese Dictionary