例如：错词：This is my books. books→book
增词：It ^ on my desk. It ^ → It is
删词：My the last name is Smith. the→ \
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Hearing is very important to all of us. We can hear beautiful musics, nice songs of birds, or other differently kinds of sounds in the world with our ears. So we must try to protect (保护)our ears. Here are some rules to tell you what to protect ears. Listen to music with headphones（耳机） a lot can be bad for ears. So try not to wear headphones and turn down (关小一点)the volume(音量) when you using the headphones. You should give your ears a rest if you like wearing it. Before swim, remember to put earplugs(耳塞) into your ears, and then you can stop the water from get into your ears. If you are a musician, it is also a very important. See a doctor when your ears hurt（疼）. You must follow these rules now and you won't say "What? What？" |
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