词根词缀：bi-, bin-, bino-, bis-

【来源及含义】Latin: two, twice, double, twofold; a number; it normally functions as a prefix

【相关描述】This bi- is used before s, c, or a vowel. Don't confuse this bi- with another one which means "life".

All words except biennial referring to periods of time and prefixed by bi- are potentially ambiguous. Since bi- can be taken to mean either "twice each" or "every two", a word like "biweekly" can be understood as "twice each week" or "every two weeks".

【同源单词】biacid, biangular, biannual, biannual, biarchy, biarticulate

词根词缀：gamo-, gam-, -gamy, -gamous

【来源及含义】Greek: marriage, union; wedding; pertaining to sexual union

【同源单词】adelphogamy, agamete, agamic, agamist, agamodeme, agamogenesis

词根词缀：mono-, mon-

【来源及含义】Greek: one, alone, single; a number used as a prefix

【同源单词】antimonopoly, bigamy, electric monopole, fibrous dysplasia, infectious mononucleosis, monacanthid