surface trait

例句：

1. 1. The new car has a sleek surface trait that makes it stand out from the crowd.
   这款新车拥有光滑的表面特征，使它从人群中脱颖而出。
2. 2.The scientist discovered a surface trait that could be used to identify genetic variations.
   科学家发现了一种表面特征，可以用来识别遗传变异。
3. 3. The researcher focused on studying the surface trait of the material to improve its durability.
   研究人员专注于研究材料的表观特性，以提高其耐用性。