Pluteus
n. [动]长腕幼虫(海胆类幼体)
🗣️ 情景例句
Yes, I'm ready.
是的，我想好了。
Do you ever study English on Sunday?
你曾经在星期日学英文吗？
Which language is spoken by the largest number of people in the world?
世界上哪种语言说的人最多？