廿: twenty原: primary; original; former廿枝: hatachi廿一烷: heneicosane卅: 数词(三十) thirty廿一碳烯: heneicosene卅九特征码: thirty-nine feature code廿一世纪全球领导新趋势: flight of the buffalo卅九特徵码: this connection廿一世纪的青年人: the youth and the 21st century卅六烷酸: ceroplastic acid廿一世纪: 21st century
