discipline

n. /ˈdɪsəplɪn/ B2

纪律；自律；学科

The practice of training people to obey rules and self-control.

仙境例句

The old Tortoise kept good discipline, and no little turtle dared to talk in class.

老陆龟把纪律管得很好，没有哪只小海龟敢在课上说话。