Extrados
n. [建]拱背(拱的外缘线)
✅ 同义词
🗣️ 情景例句
Taste Ellen's turkey dressing.
一 Ellen的火锅填料。
I feel terrible about it.
太对不起了。
This ability was first noticed by her father.
是她父亲首先发现她这一功能的。