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
They have a good relationship.
他们关系不错。
First, I would like to express to all of you here our sincere welcome.
首先，我向在坐的诸位表示诚挚的欢迎。
Thank you very much.
非常感谢。