uniform investment

例句：

1. 1. The army requires all soldiers to wear uniforms.
   军队要求所有士兵都穿制服。
2. 2. The new policy requires all employees to wear uniforms at work.
   新的政策要求所有员工在工作时都穿制服。
3. 3. The uniform design is very popular among students.
   这种统一的设计在学生中非常受欢迎。