小提琴手在演出前需要重新调音。

The violinist needs to ___retune her instrument before the performance.

我不得不重新调校吉他，因为琴弦听起来不太准。

I had to ___retune my guitar because the strings didn't sound right.

我们重新调整了课程设置，以满足学生的不同需求。

We ___returned the curriculum to meet the diverse needs of students.