I finished this project with dogged determination.

我以坚定的意志完成了这个项目。

Successful people always have a dogged belief.

成功者总是拥有坚定的信念。

The young man's dogged will is one of the reasons for his success.

这个年轻人的顽强意志是成功的原因之一。

They have gained respect through sheer dogged determination.

他们完全通过顽强的决心获得了尊重

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。

His career has been dogged by bad luck.

他的职业生涯厄运不断。

He had been dogged by bad health all his life.

他一生多病，备受折磨。

The only way to improve is through hard work and dogged perseverance.

要更上一层楼，唯一的途径就是艰苦奋斗，不屈不挠。

He has been dogged by allegations of questionable business practices.

他一直被有可疑商业行为的传言困扰着。