abstract的词根是tract,拉,见attract,吸引。前缀abs-为ab-变体,离开。
abstract的意思有：
n.摘要;抽象派艺术作品;(文献等的)概要
adj.抽象的(与个别情况相对);纯理论的
vt.把…抽象出;提取;抽取;分离;写摘要
双语例句：
1.Please write an abstract of this article 〔 thesis 〕.
请写一份这本书〔这篇论文〕的摘要。
2.He read through the papers and made an abstract of their contents.
他把那些论文都读了一遍并做了内容摘要。
3.We may talk of beautiful things but beauty itself is abstract.
我们尽可谈论美的事物，但美本身却是抽象的。
4.It is easier to think in concrete terms rather than in the abstract.
结合具体的事物来思考要比抽象思考容易些。
5.The research shows that preschool children are capable of thinking in abstract terms.
研究表明，学龄前儿童具有抽象思维的能力。