n.可萃性
Such an extract in a solution of alcohol. 酒精提取物酒精溶液中的提取物
He tried to extract his pole from the mud. 他试图用力将杆子从泥中拔出来。
It take a major operation to extract money from a minor poet. 要从小诗人那儿榨出钱来，得施行一次大手术。
Data mining is to extract knowledge from information. 资料开采是从各种资讯中获得知识。
