Did the van slow down at all?

翻译：货车减速了吗？

请问这里的at all是什么意思?

回答如下：

这里的at all 意思“完全； 根本;丝毫，一点；根本；究竟；从任何方面考虑”一般用在否定句子更为常见，起加强语气作用

Whatever is worth doing at all is worth doing well.

任何值得做的事就值得做好。

I'm not at all sure, actually.

实际上我根本不能肯定。

You might as well not know a thing at all as know it only a little.

只知道一点点，不如完全不晓得。

As a matter of fact, I didn't know him at all.

事实上，我根本不认识他。

He is not at all alive to the danger he is in.

他完全没有意识到他处境的危险。

It doesn't matter at all.

这根本没什么关系。

I don't think that's a bad idea at a