We have every reason to refuse.我們完全有理由拒絕。
Can you tell me the reason why you were late this morning.你能告訴我今早為什么遲到。
reason是理由和原因的意思。再來一個例子:
We have reason to believe that he was lying.我們有理由相信他是在撒謊。
reason也可表示道理,情理。
Why didn't you listen to reason?你為什么不愿聽從道理?
reason也可做動詞,表示講理,和某人講理就用介詞with.
There is no use reasoning with him.和他講理根本沒用。