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我发明的这种自动铅笔很方便,也很实用。它的颜色是粉色的,笔杆上有5个按钮。第一个按钮颜色是红色的,它的用处是换铅芯。如果没有铅芯了,你按一下它就自动换芯;第二个按钮是白色的,它的用处是帮你擦错字。不论你写错什么字,它都能帮你擦得不留一点儿痕迹,非常干净;第三个按钮是黄色的,它的用处是调颜色。如果你上美术课的时候,没有带水彩笔,它就能当水彩笔用;第四个按钮是黑色的,它的用处是提醒你的写字姿势。如果你握笔不正确,就写不出字;第五个按钮是绿色的,它的用处是唱歌。如果你心情不好的话,你按一下绿色按钮,它会给你唱你喜欢的歌曲。
The mechanical pencil I invented is very convenient and practical. Its color is pink, with 5 buttons on the pen. The first button color is red, its usefulness is the lead-free core. If you do not have a lead, you press it to automatically change the core; the second button is white, its usefulness is to help you wipe the wrong word. No matter what you write wrong words, it can help you wipe without leaving a trace, very clean; the third button is yellow, its usefulness is to adjust the color. If you come to the art class without a watercolor pen, it can be used as a watercolor pen. The fourth button is black, and its usefulness is to remind you of your writing posture. If you hold the pen incorrectly, you can not write the word; the fifth button is green, and its use is singing. If you are in a bad mood, click the green button and it will sing you your favorite song.