affinity          
noun uk/əˈfɪn.ə.ti/ us/əˈfɪn.ə.t̬i/
 [ S ](尤指因为有相同的特征而引起的)情投意合,喜爱,吸引 
a liking or sympathy for someone or something, especially because of shared characteristics
  She seems to have a natural affinity for/with water. 她好像天生就喜欢水。 
  [ C or U ]类同;雷同 
a close similarity between two things
  There are several close affinities between the two paintings. 这两幅画有多处非常相似的地方。