Proterozoic
n. 元古代, 元古代岩\\na. 元古代的, 元古代岩的
🗣️ 情景例句
Philip, why don't you go
Philip 你何不去
Joe was really a rat.
乔是个十足的大骗子。
Fine! Why don't you get your things ready?
好极了！干吗还不把东西准备好？