bulla的复数形式为：bullae...

The bulla were pierced and the inner liquid was abstracted under surface anesthesia before the injections.伴有大泡性角膜病变者,注射前表面麻醉下将大泡刺破或将内液抽除,随访6-24月....

n.垂饰，教皇的印玺...

bulla的音标：bulla的英式发音音标为：['bʊlə]bulla的美式发音音标为：['bʊlə]...