Planum sternale
[医] 胸骨平面
🧩 词语组成解析
面, 平面
🗣️ 情景例句
Too easy for you?
对 ，太容易了
Archeologists still can only surmise as to the origin of Man.
考古学家们对于人类的起源依然无法推测。
What are you doing?
你在干什么？