1. The doorkeeper gave the alarm as soon as he see the smoke. 守门人一看见冒烟就发出警报。
2. 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。
3. It is like a man going on a journey, when he leaves home and puts his servants in charge, each with his work, and commands the doorkeeper to stay awake. 这事正如一个人离开本家，寄居外邦，把权柄交给仆人，分派各人当做的工，又吩咐看门的警醒。
英英解释
n.
1. an official stationed at the entrance of a courtroom or legislative chamber
2. the lowest of the minor Holy Orders in the unreformed Western Church but now suppressed by the Roman
3. someone who guards an entrance
