His effort to help her will come to naught.

他帮助她的努力将成为泡影。

Even so, such efforts have also come to naught.

但即便如此，这些努力也化为乌有。

As happened in that boom, most of these ideas will come to naught.

就像那次热潮一样，这些思想大都一事无成。

In the past, boycott campaigns in China have largely come to naught.

过去，中国的联合抵制运动往往无功而返。

These negotiations come to naught, this just might ruin the whole plan.

取消谈判会让整个计划都完蛋的。