不要滥用止痛药，只在必要时服用。

Don't ___misuse painkillers; only take them when necessary.

老师不应该滥用职权来惩罚学生。

Teachers should not ___misuse their authority to punish students.

药物的误用可能会导致严重的健康问题。

The ___misuse of medication can lead to serious health problems.