Fovea primitiva
[医] 原凹
🧩 词语组成解析
n. 窝, 凹\\n[医] 凹
原板（原生动物）
🗣️ 情景例句
Because it's also known now as Youth Day. So you see-
因为这个节日还被称为是青年节，所以你明白了-
A chance may come up soon.
一个机会可能会很快出现。
What kind of problem.
什么样的问题呢？