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v.用松香( rosin的过去式和过去分词 ); 英英释义: rosin[ 'rɔzin, 'rɔ:- ]n.any of a class of solid or semisolid viscous substances obtained either as exudations from certain plants or prepared by polymerization of simple molecules同义词:resinv.rub rosin onto"rosin the violin bo