rarify something
及物用法，表示使某物变得精细或稀薄。
The heating process rarifies the metal.
加热过程使金属纯化。
使成精细；使变稀薄
变稀薄；纯化；使更复杂、精致或丰富
常用于科技或文学语境
使更复杂、精致或丰富
make more complex, intricate, or richer
一般现在时
The process rarifies the gas.
这个过程使气体变稀薄。
一般过去时
They rarified the mixture yesterday.
他们昨天使混合物变精细了。
现在完成时
The air has rarified at high altitude.
在高海拔处空气变稀薄了。
规则变化，过去式和过去分词均为rarified。
The scientist used a special method to rarify the gas for the experiment.
科学家使用一种特殊方法使气体变得稀薄，用于实验。
用法提示：用及物动词原形，表示使气体变稀薄。
As the altitude increased, the air rarified naturally.
随着海拔升高，空气自然变得稀薄。
用法提示：用不及物动词过去式，描述空气自然变稀薄。
The artist's technique rarifies the texture of the paint, creating a delicate finish.
这位艺术家的技法使颜料的质地变得精细，呈现出细腻的效果。
用法提示：用及物动词第三人称单数，表示使颜料质地精细。
及物用法，表示使某物变得精细或稀薄。
The heating process rarifies the metal.
加热过程使金属纯化。
不及物用法，表示某物自身变得精细或稀薄。
The air rarifies as altitude increases.
随着海拔升高，空气变得稀薄。
rarefy 侧重物理上使气体稀薄或使物质变稀疏；rarify 侧重使事物更复杂、精细或丰富
purify 强调去除杂质使纯净；rarify 强调使事物变得更精细或复杂，不一定去除杂质
rarely 是副词，表示频率；rarify 是动词，表示使变得精细
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