A priori
由因及果的, 演繹的, 先驗的\\n[法] 公理的, 自明的
?? 牛津釋義
a priori
(using reasoning that proceeds) from known causes to imagined effects, eg saying `They've been walking all day so they must be hungry.' （用推理方法）由已知原因推測出結果（如說
'他們走了一整天, 那么他們一定餓了.'） Cf 參看 a posteriori.
?? 詞語組成解析
a. 先驗的；優先的（等于a priori）
??? 情景例句
I'm leaving for Beijing on a four-day tour.
我馬上要去北京旅游4天。
I can't recall how long it's been.
我不能記起多長時間了。
At the station, he was told by a smiling policeman that his bicycle had been found.
在警察局里，一位面帶笑容的警察告訴他，他的自行車找到了。