uniform fluid

例句：

1. 1. The soldiers must weartheir uniforms when they are on duty.
   士兵在值班时必须穿制服。
2. 2. Theschool has a strict policy of uniformsfor all students.
   学校对所有学生实施严格的着装政策。
3. 3. The new dress code requiresall employees to wear uniforms.
   新的着装规定要求所有员工都穿制服。