4 sentences

1. 你学生的成功率是多少？

   nǐ xué​sheng de chéng​gōng​lǜ shì duō​shao?

   What's the success rate of your students?

   Source: OpenSubtitles

2. 这个方案的成功率较高。

   zhè gè fāng'àn de chéng​gōng​lǜ jiào gāo.

   The success rate of this plan is relatively high.

   Source: Dong Chinese Dictionary

3. 这个项目的成功率非常高。

   zhè gè xiàng​mù de chéng​gōng​lǜ fēi​cháng gāo.

   The success rate of this project is very high.

   Source: Dong Chinese Dictionary

4. 这家医院引进了许多高科技设备来提高手术的成功率。

   zhè jiā yī​yuàn yǐn​jìn le xǔ​duō gāo​kē​jì shè​bèi lái tí​gāo shǒu​shù de chéng​gōng​lǜ.

   This hospital has introduced many high-tech pieces of equipment to improve the success rate of surgeries.

   Source: Dong Chinese Dictionary