Oas
abbr. 美洲国家组织（Organization of American States）；现役（On Active Service）；光接入系统（Optical Access System）
📖 牛津释义
OAS
abbr
缩写 = (US) Organization of American States 美洲国家组织.
🗣️ 情景例句
What is the cost?
费用是多少？
I know the boy whose father is a manager.
我知道那个男孩的父亲是经理。
I don't think so, he says.
“我想不可以。”他说。