1、 Only US firefighters and repairmen can use the buttons to speed up the door-closing process if they have a code or special keys.
只有美国消防员和维修人员有密码或者特殊的钥匙时，他们才能按按钮加速关门的过程。
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2、 You have maids to keep the house and repairmen to fix your broken furnishings.
你有服务人员来清理房间，有维修工人来为你修理坏家具。
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