adj.经过验证或证实的
v.证明( prove的过去分词 ),检验,试验
In the past this process of transition has often proven difficult.
过去这一过渡过程常常很艰难。
a student of proven ability
确有才华的学生
Few would argue that this team has experience and proven ability.
这个队伍的丰富经验和表现出来的实力是众所公认的。