Rarefy
vt. 使稀少, 使稀薄, 使纯化, 精炼\\nvi. 变稀少, 变稀薄
✅ 同义词
📖 牛津释义
rarefy
v
(pt, pp -fied) [I, Tn esp passive 尤用於被动语态]
(cause sth to) become thinner or less dense （使某物）变薄, 变稀, 变?quot;?BR> rarefying gases 变得?quot;〉钠?
🗣️ 情景例句
and come back Sunday.
然后在星期天回来。
Which one is heavier?
哪一个是较重的？
John asked Grace to marry him，
约翰向格雷斯求婚。