no-nonsense
🇺🇸
/ˌnəʊ ˈnɑːnsens/
🇬🇧
/ˌnəʊ ˈnɒnsns/
Straightforward and focused on essentials, not accepting any nonsense.
The no-nonsense teacher quickly settled the class and started the lesson.
这位严肃认真的老师迅速让班级安静下来并开始上课。