adj. baggy ; marsupial ; pockety
misc. pocketmeter
动物细胞有一个口袋状的外层，叫细胞膜。
The cells of an animal have a bag-like outer covering, called a membrane.
用拖网捕鱼时，渔船拖着一个袋状的网，从海底兜网鱼类。
In trawling, a fishing boat drags a bag-shaped net along the sea bottom.
它们在浅海的沉积物中扭来扭去，把猎物吞进袋状的微小躯体里，把水从嘴巴周围的圆锥形喷口排出去。
They wriggled around in the sediments of shallow seas, gulped prey into their minuscule, baglike bodies and expelled the water through cone-shaped spouts around their mouths.
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