不幸的是，无论完成了多少任务，无论忙到何种地步，我们都无法从中得到乐趣和幸福。

Unfortunately, no matter how much we accomplish and how busy we remain, we do not experience happiness or joy because of this.

youdao

无论如何，任务总得完成。

At any rate the task must be fulfilled.

《新英汉大辞典》

无论我们遇到什么困难，我们都要按时完成工作。

Whatever difficulty we meet, we shall finish the work on schedule.

youdao