不惜任何代价我都要完成这项任务.翻译

I'm determined to finish the task no matter what it costs.
表示你的坚定的决心和强烈的语气
I will finish the task at all costs.语气较平实。

I'll finish the task at all costs

At any cost, I have to finish this task

I will finish the task ,no matter what will take.

As long as I could get this task done, I don't care how much it will take.

I will do my best to finish this task.