a spontaneous or natural liking or sympathy for someone or something
本性爱好,同情心
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he had a special affinity with horses .他对马有天生的喜爱。
a similarity of characteristics suggesting a relationship, especially a resemblance in structure between animals, plants, or languages
(尤指动物、植物、语言之间结构的)类同,相似性。
[mass noun]relationship, especially by marriage as opposed to blood ties
(与血缘关系相对的)姻亲关系。
【主生化】 亲和力,亲和性。
"Middle English (in the sense ‘relationship by marriage’): via Old French from Latin