如果解剖尸体，或是通过手术查看胃的内部结构，它就像一个袋子一样，表层由一系列的看得见的褶皱组成。
If you look inside a stomach when dissecting a cadaver, or during an operation, it appears like a bag whose surface is thrown into a series of visible folds.
如果解剖尸体，或是通过手术查看胃的内部结构，它就像一个袋子一样，表层由一系列的看得见的褶皱组成。
If you look inside a stomach when dissecting a cadaver, or during an operation, it appears like a bag whose surface is thrown into a series of visible folds.
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