If you describe someone's actions as dogged, you mean that they are determined to continue with something even if it becomes difficult or dangerous. 顽强的
adjective [原级]顽强的,坚持不懈的
They have, through sheer dogged determination, slowly gained respect for their efforts. 他们凭借顽强的毅力慢慢地为自己的努力赢得了尊重。
verb [vt. 及物动词]困扰,纠缠;跟踪,尾随(dog 的过去式和过去分词)
His career has been dogged by bad luck. 他的职业生涯厄运不断。