Biconcavity
n. biconcave的变形
🗣️ 情景例句
What will the monthly payments be?
每月要付多少？
What's this?
这是什么？
We don't like the same colours, either.On our birthday, we often get the same presents.
我们对颜色的喜爱也不一样。每逢过生日，我们经常得到一样的礼物。