We can only laugh off these groundless criticisms.

对这些毫无根据的批评，我们只能一笑置之。

New findings have proven that the assumption is groundless.

新的发现已证明那个假定是毫无根据的。

Such groundless accusations show that the media are irresponsible.

这样毫无理由的指责表明这些媒体是不负责任的。

My fears turned out to be groundless.

结果证明我的担心是毫无根据的

Our fears proved groundless.

我们的担心证明是毫无道理的。

I can say with confidence that such rumours were totally groundless.

我可以很有把握地说这些传言完全没有根据。

Fears that the world was about to run out of fuel proved groundless.

担心地球燃料即将用尽被证明是没有根据的。

Such talk is actually specious and groundless.

这些话实际上毫无根据，似是而非的。

Their groundless accusation is made with ulterior motives.

他们的无端攻击是别有用心的。