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
No doubt about it.
毫无疑问。
Why are you here?
你怎么会在这里？
The snake, however, continued to 'dance' slowly.
然而那蛇却还是缓慢地“舞动”着。