十一: eleven基: base; foundation二十一基: heneicosyl; hentriacontyl三十一基: hentriacontyl十一基苯酚: undecyl phenol十一基噻吩烷: undecyl thiophane十一基硫代硫酸盐: undecyl thiosulfate十一基聚氧乙烯醚醇: undecyl-polyoxyethylene-ether-alcohol廿一基: heneicosyl单一基金: single fund第一基本量: first fundamental quantity第一基金: first fund第一基室: first basal cell统一基金: consolidated fund第一基本形式: first fundamental form第一基督教堂: first christian church联邦统一基金: federalconsolidatedfund统一基准面的: flat datum十一, 十一个: eleven十一,十一个: eleven十一烷;十一烷: hendecane八十一: eighty one; yasoichi第十一: eleventh二十一: twenty one; twenty-one九十一: ninety one