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
May I ask how Mr. Mrs- is?
-先生（小姐）好吗？
A fall into the pit, a gain in your wit.
吃一堑，长一智。
Let us suppose that a child suddenly crosses the road in front of you.
让我们假设一个小孩子突然在你前面穿过马路。