| 单词 | OAO |
| 释义 | Definition of OAO in English:OAOnoun military slang
noun
Origin1920s; earliest use found in The New York Times Definition of OAO in US English:OAOnoun military slang
noun
Origin1920s; earliest use found in The New York Times<br>1960s; earliest use found in Frederick Ira Ordway (b. 1927). |
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