lǎo / shī / ràng / xué / sheng / fǎn / fù / liàn / xí / yǐ / tí / gāo / yīn / zhǔn / hé / jié / zòu / gǎn

老师让学生反复练习，以提高音准和节奏感。

The teacher had the students practice repeatedly to improve their pitch accuracy and sense of rhythm.