Echinoid
n. [动]海胆纲动物\\na. 海胆状的, 海胆属的
🗣️ 情景例句
Is the tip included in the bill?
账单里包括小费吗？
Do you think you'll be able to go to sleep right away?
你认为你将马上入睡吗？
There's another tiger in the forest.
这林子里还有另外一只老虎。