Steven: Mr. Sellers? It's Steven speaking, your tenant. We've just suffered a power failure.
What should I do now?
Mr. Sellers: All right, Steven. Do you have a flashlight?
Steven: Yes, I do.
Mr. Sellers: OK, now go down to the basement and find the circuit box. Open it and check if there are any fuses blown out.
Steven: How do I know if it's blown out?
Mr. Sellers: You'll see it's black and has burnt smell.
Steven: Then what shall I do?
Mr. Sellers: Unscrew the burnt fuses and replace them with the good ones. You can find them on the rack in the basement.
Steven: OK, I'll try. I'll call you again if that doesn't work.

史蒂文：塞勒先生，我是你的住客史蒂文。我们这里刚停了电。我现在应该怎么办？
塞勒先生：哦，史蒂文。你有没有手电筒？
史蒂文：有的。
塞勒先生：好，现在到地下室去找电箱。打开它，看保险丝有没有烧断了。
史蒂文：我如何知道保险烧断了？
塞勒先生：保险丝是黑色的、有焦味，就是烧断了。
史蒂文：接下来我要怎样做？
塞勒先生：拿下那些烧坏了的，再换上好的。你可以在地下室里的架子上找到好的保险丝。
史蒂文：好的，我现在就试试，但是如果行不通，我再给你打电话。