Echinoids
(echinoid 的复数) n.[动]海胆纲动物\\na. 海胆状的, 海胆属的
🗣️ 情景例句
While sitting on the bus I often meet interesting people.
乘车时，我经常碰到一些有趣的人。
Joy and sorrow are next-door neighbours.
是喜是忧难以分。
The answer is English.
答案是英语。