being the first to do or use something, in a way that is an example for other people

He cited the California judges' trailblazing role in overturning a ban on interracial marriage 56 years ago. 他列举了加州法官在56年前推翻跨种族婚姻禁令的开创性作用。

the fact of being the first to do or use something, in a way that is an example for other people

As a young medical student when there were very few other women students, she learned something about the difficulties of trailblazing. 作为一个年轻的医学院学生，当时其他女学生很少，她体会到开拓的困难。