Oscar moved into his apartment in March. Every night, he heard a low humming sound. It came from somewhere behind the kitchen wall. At first, he thought it was the refrigerator. He checked the refrigerator, but it was quiet.
奥斯卡三月搬进了他的公寓。每天晚上，他都能听到一种低低的嗡嗡声，是从厨房墙后面的某个地方传来的。起初，他以为是冰箱。他去检查了冰箱，可是它很安静。
The humming came back every night at nine. One evening, Oscar decided to find the sound. He put his ear against the wall and listened. The sound seemed to move up toward the ceiling. The next morning, he knocked on his neighbor's door.
嗡嗡声每天晚上九点都会回来。一天晚上，奥斯卡决定把声音找出来。他把耳朵贴在墙上听，声音好像在往天花板的方向移动。第二天早上，他敲了邻居的门。
A woman named Lucia opened the door and smiled. "Hi! Can I help you?" she asked. "Hi, I'm Oscar, from downstairs," he said. "I have a strange question for you." "Okay," Lucia said, and laughed a little.
一位名叫露西娅的女士开了门，笑着说：“你好！有什么事吗？”“你好，我是楼下的奥斯卡，”他说，“我想问你一个奇怪的问题。”“好啊，”露西娅说，轻轻笑了一下。
"Do you hear a humming sound at night?" Oscar asked. Lucia's face changed, and she looked surprised. "Oh! That's probably my fish tank," she said. "I got a new pump for it last week. It's really loud. I didn't know it traveled through the wall."
“你晚上有没有听到嗡嗡的声音？”奥斯卡问。露西娅的神情变了，显得很吃惊。“哦！那大概是我的鱼缸，”她说，“上星期我给它换了一个新水泵，声音真的很大。我不知道它会顺着墙传过去。”
Lucia showed Oscar the fish tank and the small pump. "I'm sorry about the noise," she said. "It's okay," Oscar said. "I just wanted to know." "I'm going to move the pump away from the wall," Lucia said.
露西娅带奥斯卡看了鱼缸和那个小水泵。“打扰你了，真不好意思，”她说。“没关系，”奥斯卡说，“我只是想知道原因。”“我会把水泵从墙边挪开的，”露西娅说。
The next night, the apartment was quiet again. Oscar smiled and went back to reading his book.
第二天晚上，公寓又安静了。奥斯卡笑了笑，回去继续看他的书。
