About Door Guard 关于门禁
chain door guard 防盗门链
Door Guard - Automobile 汽车门胶垫
regulation on door guard 门卫管理规定
Door Guard 门警装置
door guard system 门禁系统
clothing door guard 服装防盗扣
He said, sleepily, "Thou wilt sleep athwart the door, and guard it."
他睡意朦胧地说：“你就睡在门那边，守着门。”
You meet new people every day: the grocery worker, the cab driver, new people at work or the security guard at the door.
你每天都会遇到新朋友：杂货店员工、出租车司机、新同事或门口的保安。
Still, students admit that the electric door guard is much safer, as it prevents thieves as well as unwelcome salesmen from entering their dorm.
尽管如此，学生们承认，电动门后卫是更安全，因为它可以防止小偷进入，以及他们的宿舍不受欢迎的推销员。
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