[Tn, Tn.pr] ~ sth (from sth) remove sth; separate sth (from sth) 除去某物; （从某物中）提取, 抽取或分离出某物: abstract metal from ore 从矿砂中提取金属. 
[Tn] make a written summary of (a book, etc) 摘录（书等的）要点.
3 / Eb5strAkt; Eb`strAkt/ v [Tn, Tn.pr] ~ sth (from sth) remove sth; separate sth (from sth) 除去某物; （从某物中）提取, 抽取或分离出某物: abstract metal from ore 从矿砂中提取金属. [Tn] make a written summary of (a book, etc) 摘录（书等的）要点.