当她的孩子们拒绝做作业时，她不得不坚决制止。

When her children refused to do their homework, she had to ___put ___her ___foot ___down.

如果噪音持续，你应该坚决制止并向当局投诉。

If the noise continues, you should ___put ___your ___foot ___down and complain to the authorities.

当学生试图在课堂上使用手机时，老师坚决制止了。

The teacher ___put ___his ___foot ___down when students tried to use phones in class.