护士必须穿制服。

Nurses have to wear a uniform.

《牛津词典》

士兵、警察和护士们都穿制服。

Soldiers, policemen, and nurses wear uniforms.

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对于护士、警察、理发师或服务生来说，还有什么比脱掉制服更容易使人们看不出其职业身份的方法呢？

What easier way is there for a nurse, a policeman, a barber, or a waiter to lose professional identity than to step out of uniform?

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