英语词汇“blue oak”的意思、释义、用法解释及翻译-春雷网

词汇	blue oak
释义	Definition of blue oak in English: blue oak noun The oak Quercus douglasii, which has blue-green leaves and is endemic to California. Origin Early 19th century; earliest use found in Samuel R. Brown (1775–1817). Definition of blue oak in US English: blue oak noun The oak Quercus douglasii, which has blue-green leaves and is endemic to California. Origin Early 19th century; earliest use found in Samuel R. Brown (1775–1817).
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Definition of blue oak in English: