变色笔 biànsèbǐ color-changing pen Origin Definitions Defs Strokes Stroke Words Sentences Sents 变色 變色 biànsè verb + noun to change color To change color, as in materials, chemicals, or the nature of a landscape (often used figuratively to describe a change in political regime)笔 筆 bǐ noun pen writing or drawing instrument; pen; pencil; writing brush