mandatory restrictions on exports

例句：

1. 1. The government has imposed a mandatory quarantine on all travelers entering the country.
   政府已对所有进入该国的旅客实施了强制性隔离。
2. 2. This is a mandatory requirement for all students to complete their courses.
   这是所有学生完成课程的强制性要求。
3. 3. The company has mandated that all employees must attend training sessions.
   公司已规定所有员工必须参加培训。