perhaps和maybe有什么区别？

perhaps与maybe

perhaps意为“也许”，“可能”，是副词，含有“也许是如此，也许不是如此”的意味，如：

But perhaps they don't know that yet.但是他们可能还不知道。He will perhaps succeed.他也许会成功。(不成功的可能性较大)

maybe意为“或许”、“大概”是副词，为美国英语，主要用于非正式场合，口语中常用。如：Maybe they will let me go.或许他们会让我走。Maybe he will succeed.他也许会成功。

Maybe 较适当

Perhaps 有大约的意思
解释: used to show approximation
例句: The house is perhaps five miles from here.

maybe 也有大约的意思(解释4)，但更多时是不肯定(解释1)、是非之选(解释2)、推想(解释3).
解释1. expresses uncertainty
例句: Maybe I'm being too optimistic, but I really think we can get the best players.
"Can I have a new bike?" "Maybe."

解释2. neither yes nor no: used to give a response that is neither yes nor no
例句: "So do you want to come with us or not?" "Well, maybe."

解释3. introduces suggestions: used to introduce advice or suggestions
例句: Maybe you should ask her what she means before you jump to conclusions.

解释4. approximately: indicates an approximate estimation, e.g. of frequency or a number
例句: The coastal glacier gives off large icebergs maybe every three or four years.
例句: The forests in this region are no more than 60, maybe 70, years old.