地道英语对话：Checking Smoke Detectors(5)

（单词翻译）

A: Hello.
B: Hi, Betty. It's Larry. Can you tell me how many smoke detectors¹ you have?
A: There are two smoke detectors in my apartment.
B: Do you know how new the batteries are?
A: I'm very afraid of fires. I change the batteries every Labor² Day.
B: Good. I'm calling all the tenants³ before I come by to test the detectors.
A: My detectors are ready for you. When will you be visiting?
B: This Thursday at noon. But you don't have to be there.
A: Okay, just pardon the mess when you come in.
B: You'll never even know that I was there.