三九天 sānjiǔtiān dead of winter Definitions Defs Origin Strokes Stroke Words Sentences Sents 三九 sānjiǔ coldest days of winter The third nine-day period after the winter solstice, from the 19th to the 27th day, usually the coldest time of the year.天 tiān noun day a period of twenty-four hours; also used as a measurement for days or a specific time of day
