四轮驱动 sìlúnqūdòng four-wheel drive Origin Definitions Defs Strokes Stroke Words Sentences Sents 四 sì numeral four the number four; complex form used for financial purposes is 肆 sì轮 輪 lún noun wheel wheel; circular part in a machine or vehicle that rotates; disk or ring驱动 驅動 qūdòng verbnoun to drive to drive or propel by applying force; to make a machine or vehicle start moving