rarefy的一般过去时怎么写？

rarefy的现在完成时为：rarefied...

rarefy的现在进行时为：rarefying...

vt.使稀薄，（思想等）精炼，使纯化，使变得精妙深奥...

rarefy的音标：rarefy的英式发音音标为：['reərɪfaɪ]rarefy的美式发音音标为：['rɛrəˌfaɪ]...

rarefy的第三人称单数（三单）为：rarefies...

Astrapotheria的音标：...

Olive groves, grapes, and citrus fruits grow in profusion.橄榄、葡萄和柑橘类水果产量丰富。The frost last week was a great calamity to the citrus industry.上周的霜冻对柑橘种植业是一场大灾难.Citrus growers were cautioned to protect the fruit from frost.种柑...

“谣言”的拼音为：yáo yán...

inefficacy的音标：inefficacy的英式发音音标为：[ɪn'efɪkəsɪ]inefficacy的美式发音音标为：[ɪn'efəkəsɪ]...

n.流行性感冒，流感( flu的名词复数 )...

“懒惰”的拼音为：lǎn duò...

去冰，除冰...

n.水螅虫adj.水螅虫的...

n.大堆可燃物，（尤指火葬用的）柴堆...

Arbacioida的音标：...

Bacchic的音标：Bacchic的英式发音音标为：['bækik]Bacchic的美式发音音标为：['bækɪk]...

commissioners的音标：...

“辐射”的英语可以翻译为：adiation，exposure，radio，beaming，eradiate ...

quail的音标：quail的英式发音音标为：[kweɪl]quail的美式发音音标为：[kwel]...

“大约”的近义词/同义词：约莫, 大抵, 大略, 大概, 大致, 约略, 大意, 大要。...