It's no use pumping a dry well.

涸进汲水，于事。

What, is that supposed to make this better?

这么说也于事？

The tenants complained but it was no use.

房客们的抱怨于事。

Nothing can be rebuilt in kills.

破坏投票于事。

My early instructions were all out of place.

我以往的做法于事。

Even if I did, it wouldn't make a difference.

就算我这么做也于事。

Help like this is no help indeed.

这样的助真的是于事。

But, it won't help you now!

但现在也于事了!

Neither mousse nor styling gel had the slightest effect on Sophie's hair.

不管泡沫胶或造型发胶于事。

Competition with telehealth providers is not helping.

与远程医疗提供商的竞争于事。

Panic does not help when one is in a dangerous situation.

陷入险境时，惊恐是于事的。

And the feedback for the P.A. system is no help at all.

而且广播系统的反馈也于事。

Sadness protested, but it was pointless.

忧忧表示抗议，但于事。

They built themselves towns and fortresses, to no avail.

他们也建造城镇和要塞，但于事。

But America's waning interest in diplomacy does not help.

但美国对外交兴趣的减弱也于事。

You have got a great prognosis and chemotherapy won't help.

你的预后很好，化疗也于事。

The ongoing conflict between Moscow and the West doesn't help either.

莫斯科与西方之间持续不断的冲突也于事。

But switching to a mainly plant-based diet wouldn't help.

但是转向主要以植物为基础的饮食也于事。

This was all unsuccessful, so he tried personal insults.

但这于事。他便对他进行人格侮辱。

But that won't help with flood prevention now, will it?

但是那对洪涝灾害的预防于事，对吧？