Invaginate planula
[医] 原肠胚
🧩 词语组成解析
v. 收进鞘中
n. [动]浮浪幼体
🗣️ 情景例句
Hello.
哈喽。
Let me explain my actions.
请听我解释。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。