An abnormal membranous sac containing a gaseous, liquid, or semisolid substance.

囊肿一种含有气态 、 液态或者''.'半'.''固态物质的异常膜''.'性'. ''囊.

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Gallbladder: Muscular membranous sac under the liver that stores and concentrates Bile.

胆囊: 见于许多脊椎动物的肌性膜性囊,用以贮存及浓缩胆汁.

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Pericardium -- A double - layered membranous sac surrounding the heart and major blood vessels connected to it.

心包膜 — 包住心脏和连接心脏的主血管的 双层 膜囊.

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