学校对学生使用手机采取了严格的限制措施。

The school has placed strict ___restraints on students' mobile phone usage.

警察给嫌疑人戴上了约束装置以确保安全。

The police put ___restraints on the suspect for safety.

尽管很生气，他还是表现出了极大的克制。

Despite being angry, he showed great ___restraint.

他喝酒很有节制，从不贪杯。

He drinks alcohol with great ___restraint and never overindulges.