Acoa
abbr. 前交通动脉（anterior communicating artery）
🗣️ 情景例句
We were all sorry when we heard that your brother had had an accident.
我对你弟弟的意外感到遗憾。
Didn't you order this?
你不是订下这道菜了吗？
I'm sorry to hear that. I hope you're better now.
听说你病 了，我心里很不好受。我希望你现在好些了。