二维码 èrwéimǎ HSK5 QR code Definitions Defs Origin Strokes Stroke Words Sentences Sents 二维 二維 èrwéi adjective two-dimensional describing a flat space that exists on a single plane and has only area rather than three-dimensional volume码 碼 mǎ noun number something used to indicate a number; a code; a symbol; a sign