twofoldKK [ˋtuˋfold] /ˈtuˈfoʊld/發音形容詞1兩方面的、雙重的The purpose of this meeting is twofold: to inform and to persuade.這場會議的目的有兩個方面：告知與說服。2兩倍的Researchers observed a twofold increase in sales last quarter.研究人員觀察到上一季的銷售額成長了兩倍。副詞1兩倍地、加倍地The city's population has grown twofold in just twenty years.這座城市的人口在短短二十年內成長為兩倍。