uniform

学校要求学生穿统一的校服。

The school requires students to wear ___uniform clothing.

他的制服看起来很正式。

His ___uniform looks very formal.

警察必须每天穿制服上班。

Police officers must wear their ___uniforms to work every day.

我哥哥的制服是蓝色的。

My brother's ___uniform is blue.