1·The teacher can't keep discipline in her classroom.
这位教师无法维持她的课堂纪律。
2·Everyone should keep discipline and you are no exception.
每个人都应该遵守纪律，你也毫无例外。
—— 《新英汉大辞典》
3·I couldn't keep discipline.
我没法维持秩序。
4·The teacher can't keep discipline in her class.
那位老师无法维持教室纪律。
5·The teacher can "t keep discipline in her class."
那位老师无法维持教室纪律。
6·Everyone should keep discipline, and you, officers are no exception.
每个人都应该遵守纪律，你们军官也不例外。
7·Joe: Well I did originally, but I soon found out I wasn't cut out for teaching. I couldn't keep discipline.
乔：最初是，但我不久就发觉自己不是教书的料子。我没法维持秩序。
8·Strong organizational skills, effective productivity habits, and a strong sense of discipline are needed to keep yourself on track.
强健的组织技能，有效的生产习惯和强烈的纪律性是让自己持续保持在轨道上所需要的。
9·The need to meet regular payments imposes a discipline on corporate executives, ensuring they keep a lid on costs.
因为要定期支付利息，企业管理人员就要遵守纪律，从而确保他们对成本进行控制。
10·Keep in mind that training is borne out of discipline and perseverance.
记住，训练需要纪律和毅力。