probably

maybe, perhaps, possibly, probably

这些副词均有“或许、大概”之意。
maybe: 普通用词，美国英语多用，指某事也许如此，含不能确定意味。
perhaps: 普通用词，多用于英国，与maybe同义。
possibly: 指客观上潜存着发生某种变化的可能。
probably: 一般指根据逻辑推理，估计有发生的可能，把握性较大，语气比possibly强。

副词 probably:

1. with considerable certainty; without much doubt
   同义词：likely, in all likelihood, in all probability, belike
2. easy to believe on the basis of available evidence
   同义词：credibly, believably, plausibly

1. It's probably not as bad as she says she does tend to pile it on.
   大概不像她说的那麽糟－－她确实有意夸大事实。
2. That hotel probably costs no less than 20 dollars a night.
   那间旅馆的住宿费大约要20元一晚呢。
3. Well, you're probably right.
   嗯，你大概是对的。
4. I'll be probably free then.
   那时我大概就有空了。
5. He's late he's probably stuck in a traffic jam.
   他迟到了－－很可能是由於交通阻塞耽误了。
6. We're going on holiday soon, probably next month.
   我们很快就要去度假了，多半是下个月。