1. Letterhand Graffiti literally means scribbling with lettered hands, which describes the handwriting as very sloppy and is also often used as a word of self-modesty. Modern psychological research shows that graffiti is revealing direct inner thoughts, and children's graffiti can reflect children's emotions.
2, handy: grasp the things at hand, describe rich vocabulary or materials, and write articles without thinking. Su Shi's poems in Song Dynasty.