Circulus zinnii
[医] 秦氏环, 视神经血管环
🧩 词语组成解析
[医] 环, 圈
🗣️ 情景例句
You can listen to BBC or VOA news if you want to improve your listening.
如果你想提高听力，你可以听英国广播电台或美国之音的新闻节目。
Fine feathers do not make fine birds.
人不可貌相。
Officials from Greenwich Observatory have the clock checked twice a day.
格林尼治天文台的官员们每天两次派人矫正此钟。