walking leg（步足）是什么意思？音标发音+图解场景

步足 /ˈwɔːkθɹuː ˈmɛtəl dɪtˈɛktə/ n

English: walking leg · 步足

释义：Articulated member having a motor function; it remains in the adult stage. The caterpillar has three pairs.

这个词出现在以下图解场景（2）

蜘蛛形态 毛虫