请输入您要查询的英文单词:
单词
of unknown origin
释义
of unknown origin
idiom
—
used to say that the source or cause of something is not known
a disease
of unknown origin
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cosmopolitism
cosmopolitisms
cosmorama
cosmoramas
cosmoramic
cosmorganic
cosmos
cosmoses
cosmosophy
cosmosphere
cosmospheres
cosmotellurian
cosmotheism
cosmotheist
cosmotheistic
cosmothetic
cosmothetic idealism
cosmotrons
cosmozoic
cosmozoism
cosolvent
cosovereignty
cospecific
cosplay
cosplayed
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更新时间:2025/12/9 19:33:22