一度 yīdù HSK7 once Origin Definitions Defs Strokes Stroke Words Sentences Sents yīdù once · for a time 一 yī numeral one one; the number 1; single; alone度 dù measure word [occurrence] classifier for events, occasions, or timesyīdù one degree 一 yī numeral one one; the number 1; single; alone度 dù nounmeasure word degree unit of measurement for angles, temperature, longitude, or latitude; a kilowatt-hour of electricity