A: Hi, Nicole. This is Jimmy in 309.
B: Hello, Jimmy. Can I help you?
A: I've got a little problem.
B: Tell me your problem, and maybe I can help.
A: I've looked everywhere, but I can't find my mailbox key.
B: Well, that's pretty minor. I lost my car keys and house keys once.
A: As if that wasn't bad enough, I also misplaced the duplicate.
B: Well, if it's an emergency, come by here and I'll lend you a key.
A: No, even if there's a bill in there, it can wait.
B: If you don't mind waiting until Wednesday, I'll make two more keys for you.
A: Oh, I can wait, believe me.
B: Okay, see you Wednesday. They're not free, you know. It'll be $4.
n. 副本,复制品
adj. 复制的,二重的<