单词	oak
释义	oakoak /oʊk/ ●●○ noun [countable, uncountable] Etymology ETYMOLOGYoak Origin: Old English ac a large tree that is common in northern countries, or the hard wood of this tree:  The room had oak floors. [Origin: Old English ac] → see also poison oak
随便看	subj. subject subjection subjective subjectively subjectivity subject matter subjugate subjugation subjunctive sublease sublet sublimate sublimation sublime sublimely sublimeness subliminal sublimity sublingual submachine gun submarine submariner submarine sandwich submerge

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