yī / shēng / zài / kè / táng / shàng / jiǎng / jiě / le / chǔ / jīng / náng / de / jié / gòu / hé / gōng / néng医生在课堂上讲解了储精囊的结构和功能。The doctor explained the structure and function of the seminal vesicle in class.