我想发明一种五彩铅笔,它可神奇了!绿色是环保功能。用了它之后,小朋友们不仅不会乱丢垃圾,还会主动向人们宣传环保的知识呢!这样,世界一定会变得更加美好。红色是警报功能。当你的手握笔的姿势不正确或者坐得不端正时,它就 I would like to invent a colorful pencil, it can be amazing! Green is an environmental feature. After using it, the children not only do not litter, but also take the initiative to promote people’s knowledge of environmental protection! In this way, the world will certainly become more beautiful. Red is the alarm function. It’s when your hand holds the pen in an incorrect position or when it’s sitting upright