Planarity
[计] 平面性, 平面化
🗣️ 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。
Open your book,please.
请把书打开。
Thanks. I think we have everything. Thank you for having us.
多谢。我想我们没忘记什么东西。