abstract/'æbstrækt/

a. relating to ideas rather than real things

n. a short statement of the main points in an article, report, etc.

a. 抽象的：abstract concepts such as love and hate爱和恨等抽象概念

n. [C] 摘要：[abstract of sth] the abstract of an article 文章的摘要

构词abs (= ab-) + -tract-（拉）→抽取出重要的东西

同根 attract; attractive; substraction; tractor