Interambulacra
[医]间步带
🗣️ 情景例句
I really mean it.
当然是真的。
I'm the youngest boy in my team.
我是我的那一队伍中最年轻的男孩。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）