Acoa
abbr. 前交通動脈（anterior communicating artery）
??? 情景例句
I've got to keep my nose to the grindstone to support my family.
我拼命工作養家。
I made a reservation in tokyo.
我在東京預訂的。
Yet their present development is wholly different,
但是，這兩個地方目前的發展程度完全不一樣。