单词	proponent
释义	pro·po·nent (prə-pōnənt) n. One who argues in support of something; an advocate. [Latin prōpōnēns, prōpōnent-, present participle of prōpōnere, to set forth; see PROPOSE.]
随便看	Octans octant octantal octapeptide octastyle octaval octave Octavian Octavio octavo octet octillion octillionth octo- October octodecillion octodecillionth octodecimo octogenarian octometer octonary octopi octoploid octopod octopodous

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