四轮定位 sìlúndìngwèi wheel alignment 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定位 dìngwèi verb + noun to position to determine a location using instruments or measurements; to orient; to track a position