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
Could you put that into more specific terms?
您能不能说得明确一点？
There are always two sides to everything.
每件是都有两面性。
Do you have any writing paper?
您有信纸吗？