Echinoid
n. [动]海胆纲动物\\na. 海胆状的, 海胆属的
🗣️ 情景例句
Can we? When?
行吗 ？什么时候？
Please come to the airport by eight thirty at the latest.
最迟要在8点30分到达机场。
Are you going to have a party?
你要举行聚会吗？