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
Sure.
当然可以。
United's Flight 102 leaves at 9:20.
联合公司的102次班机9点20分起飞。
But I didn't see much during the flight because there was too much cloud.
但我在飞行途中并没有看到什么东西，因为云层很厚。