rarefy
英式音标：rarefy怎么读
美式音标：rarefy怎么读
词汇归类： TOEFL
rarefy词义
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vt. 使纯化；变稀薄；精选vi. 变稀薄；纯化
词态变化
第三人称单数: rarefies;过去式: rarefied;过去分词: rarefied;现在分词: rarefying;
中文词源
rarefy 变稀薄，使高雅
来自 rare,稀薄的，罕见的，-fy,使。引申词义使精深，使高雅。
rarefy英文词源
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- rarefy (v.)
- late 14c., from Old French rarefier (14c.) and directly from Medieval Latin rarificare, from Latin rarefacere "make rare," from rarus "rare, thin" (see rare (adj.1)) + facere "to make" (see factitious). Related: Rarefied.