Embryo-
[医]胚胎, 胎儿
🧩 词语组成解析
🗣️ 情景例句
Fine.
好啊。
I'm sorry I'm late.
对不起，我迟到了。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，