doorkeeper造句

The doorkeeper tipped his hat as we entered.
我们进门时,看门人脫帽向我们致意.

The doorkeeper gave the alarm as soon as he saw the smoke.
守门人一看见冒烟就发出警报.

Security and Protection Service: including doorkeeper, guardianship and patrolling security services.
保安服务: 包括保安门卫服务, 保安守护服务和保安巡逻服务.