研钻 yánzuān to study intensively Definitions Defs Origin Strokes Stroke Words Sentences Sents 研钻 研鑽 yánzuān to study intensively to examine or research in great depth; to delve into a subject of study Cross-References Has variant 钻研 zuānyán
研钻 研鑽 yánzuān to study intensively to examine or research in great depth; to delve into a subject of study Cross-References Has variant 钻研 zuānyán
