A structure at the base of the mouth of most mollusks over which the radula is drawn back and forth in breaking up food.
舌突起，齿担一种生理构造，位于大多数软体动物的嘴底部，在这之上齿舌来回收缩以击碎食物。
A structure at the base of the mouth of most mollusks over which the radula is drawn back and forth in breaking up food.
舌突起，齿担一种生理构造，位于大多数软体动物的嘴底部，在这之上齿舌来回收缩以击碎食物。
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