基本解释[辳業科學]甜菜潛葉花蠅英英字典柯林斯英英字典 a muscid fly, Pegomyia hyoscyami: a common pest of beets and mangel-wurzels (Also called mangold fly)beet fly剑桥字典beet fly柯林斯字典专业释义辳業科學甜菜潛葉花蠅