serumKK [ˋsɪrəm] /ˈsɪɹəm/发音名词1血清医学The lab measured the level of protein in her serum.实验室测量了她血清中的蛋白质浓度。2血清制剂、抗毒血清Doctors injected the snakebite victim with serum within an hour.医师在一小时内为被蛇咬的患者注射抗毒血清。3精华液She applies a vitamin C serum before her moisturizer every morning.她每天早上先擦维他命C精华液,再上乳霜。用这个字练口说→