Hemichordate
n. [动]半索海生动物纲\\na. 半索动物纲的
🗣️ 情景例句
Oh, Grandpa!
啊，爷爷！
This river is one third as long as that river.
这条河只有那条河的三分之一长。
When could you make a delivery?
你们什么时候可以交货啊？