trait
/treɪt/noun
1- a distinguishing quality or characteristic, typically one belonging to a person（尤指人的）特征, 特点：
the traditionally British trait of self-denigration.
英国人自我贬抑的传统特点。
1.1
- a genetically determined characteristic遗传特征。
词源
mid 16th cent.: from French， from Latin tractus 'drawing， draught' （see TRACT1）. An early sense was 'stroke of the pen or pencil in a picture'， giving rise to the sense 'a particular feature of mind or character' （mid 18th cent.）.