廿: twenty野: open country; the open廿一: blackjack; xx. the dancer at cruachan and cro patrick廿五烷: pentacosane廿一点: blackjack廿五碳烷: pentacosane廿一基: heneicosyl廿五: xxiv. the delphic oracle upon plotinus廿一世纪: 21st century廿屋: tsuzuya廿一世纪的青年人: the youth and the 21st century廿烷酸: arachic acidarachidic acideicosanoic acid
