Priapulid
[医]曳鳃动物（动）
🗣️ 情景例句
If you're under twenty-one years of age ...
如果你还不到二十一岁……
He's studying his lesson.
他正在学习课程。
Arthur C.Clark once suggested a revolutionary idea passes through three phases:
Arthur C.Clark曾经提出，一个革命性的想法经过三个阶段：