Perhaps because of a natural gum in the plant, the layers stuck together.

也许由于植物中有天然胶质, 几层粘到一起了.

辞典例句

A special scouring process used to remove the natural gum, sericin, from silk, is called degumming.

清除蚕丝中的天然胶一丝胶的过程叫做脱胶.

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