Serpula
n. [动]龙介虫
🗣️ 情景例句
He is working on a book about the Vietnam War.
他正在写一本关于越战的书。
Deliberate in counsel, prompt in action.
考虑要仔细，行动要迅速。
when a significant number of people are living permanently in space.
如果有相当数量的人永久性地住在太空，