Circulus willisii
[医] 大脑动脉环
🧩 词语组成解析
[医] 环, 圈
🗣️ 情景例句
for a long time,
很久了，
Where were you during the month of April last year?
去年四月份你在哪里？
Certainly, Mum! What shall we cook?
当然啦，妈！ 我们做什么菜？