Circulus willisii
[医] 大脑动脉环
🧩 词语组成解析
[医] 环, 圈
🗣️ 情景例句
Good morning. This is Huang Feng.
早上好，我叫黄凤。
Is there any earlier one?
还有更早一点的吗？
I meant to tell you yesterday, but you were not in your office.
我原想昨天告诉你的，但你没在办公室。