They were completely unable to maintain discipline.

她们完全不能维持纪律。

youdao

They were completely unable to maintain discipline, without it, the house cannot be properly run.

没这些纪律，这个家就没法有效地管理。

youdao

We need to find more creative ways to discipline our students and to maintain control in the classroom.

我们需要用更创新的方法约束学生，维持课堂纪律。

youdao

We need to find more creative ways to discipline our students and to maintain control in the classroom.

我们需要用更有创意的方法约束学生，维持课堂纪律。

反对体罚 - SpeakingMax英语口语达人

They had proved unpopular with head teachers, who protested they undermined efforts to maintain discipline in schools.

BBC: Expulsions rise for second year

It also means that we're working with teachers to determine, what's the best way to discipline -- maintain discipline in a classroom?

WHITEHOUSE: Online Town Hall

Retirement investors, on the other hand, need very simple counsel: Save more, invest in a diversified way, defer taxes and maintain discipline.

FORBES: Are You Addicted to High Fund Fees?