單詞
rarefy
英 ['re?r?fa?]
美['r?r?,fai]
基本信息
- vt. 使純化；變稀薄；精選
- vi. 變稀薄；純化
TOEFL
英英釋意
- 1. lessen the density or solidity of;
- "The bones are rarefied"
- 2. make more subtle or refined
- 3. weaken the consistency of (a chemical substance)
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