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. 他試圖用力將桿子從泥中拔出來。
It take a major operation to extract money from a minor poet. 要從小詩人那兒榨出錢來，得施行一次大手術。
Data mining is to extract knowledge from information. 資料開采是從各種資訊中獲得知識。
