Mesectoblast
中外胚层, 外中胚层
🗣️ 情景例句
No, it's an original. My father's friend is a calligrapher, and I had him make it for you.
没错，这可是真迹。我父亲的朋友是书法家，专门帮你写的。
All of my paycheck disappears so quickly.
我的薪水在不旋踵之间都消失无踪了。
When is the store closing?
这家店什么时候结束营业？