| 单词 | oo | 
| 释义 | oo (uː)  ooh oo- in British English or oö- combining form egg or ovum  oosperm Word originfrom Greek ōion egg1 oo- in American English (ˈoʊoʊ; ˈoʊə)  egg or ovum   oogenesis Word origin< Gr ōion,  egg1 oo- in American Englishprefix a combining form meaning “egg,” used in the formation of compound words oogamous Word origin[‹ Gk ōio-, comb. form of ōión egg1] | 
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