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).
| 单词 | blue oak |
| 释义 | blue oaknoun The oak Quercus douglasii, which has blue-green leaves and is endemic to California. Origin |
| 随便看 |
英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。