老师用不容置疑的语气命令学生们立刻安静下来。

The teacher gave a ___peremptory command for the students to be quiet immediately.

经理用不容置疑的语气下达了命令，要求大家立即执行。

The manager issued a ___peremptory order that everyone must comply with immediately.

她发出不容置疑的命令，所有人都必须立即执行。

Her ___peremptory order left no room for debate; everyone had to obey immediately.