A: Could you please help me? 您能帮我一下吗？ B: What's wrong? 怎么了？ A: I locked myself out. What should I do? 我把自己锁在外面了。我该怎么办？ B: Don't worry. Just go to the front desk and ask for a dupicate key. 不要担心，你可以到前台去取备用的钥匙。