闰 闰的英文 英语翻译 bissextile; intercalary 拓展翻译 闰embolism闰沟intercalary sulci闰管intercalated duct闰核nuclei intercalatus; Staderini's nuclei闰理学pathology闰年bissextile闰年计算leap year computation闰年霉素lipiarmycin闰盘intercalated disc; intercalated disk闰细胞intercalary cells; peg cells