Circulus willisii
[医] 大脑动脉环
🧩 词语组成解析
[医] 环, 圈
🗣️ 情景例句
Help yourselves.
请随便用。
As soon as he comes, we'll let him know.
他一来，我们就告诉他。
Roy Trenton used to drive a taxi.
罗伊。特雷顿原是开出租汽车的，