stringent control

例句：

1. 1.The teacher was very strict with the students.
   老师对学生非常严格。
2. 2. The new policy is stringent enough to make everyone nervous.
   新政策非常严格，让每个人都感到紧张。
3. 3.The company's stringent quality control standards ensure product safety.
   公司的严格质量控制标准确保了产品的安全性。