何必多此一举?

Why take the trouble to do that?

然而他的坦白虽然无耻，但同时也是多此一举。

But his confession, while brazen, is also redundant.

已经有孙猴子会一百零八变了，我就没必要多此一举。

There has been monkey would 108 change, I had no necessity superfluous action.

这些规定在碳税时代，很大程度上是多此一举的。

These regulations become largely redundant in an era of carbon taxes.