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后缀:-fold [形容词及副词后缀]

表示...倍、...重

twofold 两倍,两重

threefole 三倍,三重

fourfold 四倍,四重

sevenfold 七倍,七重

tenfold 十倍,十重

hundredfold 百倍,百重

thousandfold 千倍,千重

manyfold 许多倍地

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