他荒谬的提议使整个会议变得毫无意义。

His ridiculous proposal ___stultified the entire meeting.

过于严格的规章制度会扼杀员工的创造力。

Excessively rigid rules can ___stultify employees' creativity.

每天重复相同的工作内容会让员工变得迟钝。

Doing the same routine every day can ___stultify employees.