abstract  
 adjective uk/ˈæb.strækt/ us/ˈæb.strækt/
  (GENERAL)            
 B2 抽象的;纯理论的;纯概念的
existing as an idea, feeling, or quality, not as a material object
  Truth and beauty are abstract concepts. 真和美都是抽象的概念。 
 Opposite: concrete 
  (辩论或讨论)抽象的;空泛的;空洞的
An abstract argument or discussion is general and not based on particular examples.
  This debate is becoming too abstract - let's have some hard facts! 这场辩论变得太空洞了,拿出一些具体的事实根据来吧! 
 Opposite: concrete 
 the abstract 抽象概念;理论
general ideas
 in the abstract So far we've only discussed the question in the abstract (= without referring to any real examples). 目前我们只是泛泛地讨论过这个问题。 
 I have difficulty dealing with the abstract - let's discuss particular cases. 我难以理解抽象概念,我们讨论一些具体的案例吧。 
 - More examples
 - It is sometimes easier to illustrate an abstract concept by analogy with something concrete.
 - He is good at explaining quite complex, abstract ideas in a nice simple way.
 - Your idea is rather vague and abstract - could you explain it in a bit more detail, please?
 - These early humans were clearly capable of abstract thought, and probably language too.
 - Some of these new theories are so abstract that they don't seem to relate to our everyday work at all.
 
  (ART)      
B2 抽象(派)的
used to refer to a type of painting, drawing, or sculpture that uses shapes, lines, and colour in a way that does not try to represent the appearance of people or things
  abstract art 抽象艺术 
 an abstract painter 抽象派画家 
 abstract  
noun [ C ] uk/ˈæb.strækt/ us/ˈæb.strækt/
  (SHORT DOCUMENT)      
  摘要;梗概
a short form of a speech, article, book, etc., giving only the most important facts or ideas
  There is a section at the end of the magazine that includes abstracts of recent articles/books. 杂志的最后一部分收录了近期发表的文章/出版的书籍的摘要。 
   (ART)     
 抽象画;抽象派艺术作品
a painting that uses shapes, lines, and colour in a way that does not try to represent the appearance of people or things