The teacher is keeping order in class.

老师正在课堂上维持秩序。

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Like the sergeant at arms in the Commons, black rod is responsible for keeping order in the house.

就象下院中的警卫官一样，黑棍侍卫维持下院的秩序。

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She has decided not to appeal against a court order banning her from keeping animals.

她已决定不对禁止她养动物的判决上诉。

《柯林斯英汉双解大词典》

Amid the rancor, Deutch had a hard time keeping order and getting his points across.

CNN: Deutch confronts angry L.A. residents in town hall meeting

Another change involves teacher training, which used to focus on educational theory but ignore practical techniques for keeping order in class.

ECONOMIST: Education: Behave, or else | The

The movie is a Latino-Anglo solidarity pact: for all the cultural differences and bantering, the two men share a single-minded devotion to keeping order or, at least, controlling disorder.

NEWYORKER: Risky Business