I left the room with fthe key in it. 我离开这个房间却把钥匙放在里面。
Where can I go and ask? 我可以到哪里去问? Please ask at the front desk. 请到服务台去问。
Is a door lock a snap lock? 门上用的是弹簧锁吗? Do you have a spare key? 你有备用的钥匙吗?
Please lend me a spare key. 请借我备用钥匙。 We can't lend you a spare key. 我们不能借给你备用钥匙。 Will you come with me and open it? 请你和我一块去打开它好吗?