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mùlù ·yīngwénjièshì ·fǎwénjièshì ·gèngduōjiéguǒ... yīngwénjièshì n.:  exhaustion,  extenuation,  rarefaction,  rarefication,  rareness,  rarity,  serosity,  subtilization,  subtlety,  tenuity,  washiness,  wateriness v.:  attenuate,  rarefy adj.:  thin vt.:  subtilize fǎwénjièshì adj.  raréfié, rare