内袋的英文：
inner sac

参考例句：

He pulled a small notebook from the inside pocket of his suit.
他从衣服的内袋里抽出一本小小的笔记本。

inner是什么意思：
adj. 里面的，向内的，内部的，内心的

inner core tube
内倒望远镜

The inner Qty is 6KPCS.
内箱数量为6000个。

The fluid in the membranous labyrinth of the inner ear.
内淋巴耳内部膜质内耳中的水样液

Endarteritis:Inflammation of the inner lining of an artery.
动脉内膜炎: 动脉内层膜的炎症.

Crime and drugs are infesting the inner cities.
犯罪和毒品充斥着市中心区。

sac是什么意思：
n. 囊，液囊，气囊

The peritoneal cavity is a closed sac.
腹膜腔是一个封闭的囊腔。

amniocentesis is the removal of fluid from the amniotic sac.
羊膜穿刺术是从羊膜囊抽取羊水的技术。

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。

Alveoli form clusters (alveolar sacs) connected by alveolar ducts to the bronchioles.
肺泡形成丛集的肺泡囊，经由肺泡管连接至支气管。

A membranous sac contained within the labyrinth of the inner ear and connected with the semicircular canals.
小囊，椭圆囊位于内耳迷路内的细胞膜的囊，与半规管相连