Read Edit View history 精研 jīngyán research Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 精研 · jīngyán · research 2026/03/04 精研 jīngyán research to research carefully or study intensively 他精研书法多年，造诣颇深。 verb created sense Mar 4, 2026, 02:25 AM