地道英语对话：Checking Smoke Detectors(5)

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.
 

1 detectors   

探测器( detector的名词复数 )

参考例句：

• The report advocated that all buildings be fitted with smoke detectors. 报告主张所有的建筑物都应安装烟火探测器。
• This is heady wine for experimenters using these neutrino detectors. 对于使用中微子探测器的实验工作者，这是令人兴奋的美酒。 来自英汉非文学 - 科技

2 labor   

n.劳动，努力，工作，劳工；分娩；vi.劳动，努力，苦干；vt.详细分析；麻烦

参考例句：

• We are never late in satisfying him for his labor.我们从不延误付给他劳动报酬。
• He was completely spent after two weeks of hard labor.艰苦劳动两周后，他已经疲惫不堪了。

3 tenants   

n.房客( tenant的名词复数 )；佃户；占用者；占有者

参考例句：

• A number of tenants have been evicted for not paying the rent. 许多房客因不付房租被赶了出来。
• Tenants are jointly and severally liable for payment of the rent. 租金由承租人共同且分别承担。