horny beak（角质喙）是什么意思？音标发音+图解场景

角质喙 /ˈhɔːni ˈbiːk/ n

English: horny beak · 角质喙

释义：Thick cutaneous formation covering toothless jaws; its sharp edges allow the turtle to feed.

这个词出现在以下图解场景（1）