We talked for a long time, or to be precise, I listened for a long time, for in fact, there's nothing I could say.

我们谈了很久，准确地说是我听了很久，因为我实在没有什么可说的。

youdao

For a moment I could say nothing. I could only stand and look.

一时间我什么也说不出来，只能站在那儿看着。

《柯林斯英汉双解大词典》

"That's nothing to what I could say if I chose," the Duchess replied, in a pleased tone.

“如果我想说的话，这可不算什么。”公爵夫人高兴地说。

youdao

And nothing I could do or say could make the army move."

VOA: special.2009.11.05

But nothing I could say seemed to help the Red Sox.

NPR: Red Sox Game Locks in a Father's Day Memory

He glanced back as he was going, and I could see that he knew as well as I did that there was nothing more to say, but he said it anyway.

NEWYORKER: Something Like Happy