perhaps
/pəˈhæps/adverb
1- used to express uncertainty or possibility或许, 大概, 可能：
perhaps I should have been frank with him.
或许我本该对他说实话的。
1.1
- used when one does not wish to be too definite or assertive in the expression of an opinion也许, 或许（用于不想太明确或太肯定表达观点时）：
perhaps not surprisingly, he was cautious about committing himself.
也许并不奇怪, 他表态时都很谨慎。
1.2
- used when making a polite request, offer, or suggestion［用于礼貌的请求、给予或建议］也许, 可能：
would you perhaps consent to act as our guide?
你也许会同意做我们的向导吧？
1.3
- used to express reluctant or qualified agreement or acceptance［用于表示勉强或有保留的同意或接受］大概, 好像：
'She understood him better than his wife ever did.''Perhaps so.
But…' “她比他的妻子更理解他。”“好像是这样。但是…”。
词源
late 15th cent.: from PER+HAP.