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）由已知原因推测出结果（如说: ｀他们走了一整天, 那麽他们一定饿了.＇） Cf 参看 a posteriori.

a good deal, a good few, a good many, a great deal, a great deal of, a great many, a great/good deal of, a hard nut to crack, a kind of, a la carte, a la mode, A level, a little, a lot of, a matter of, a mite, a mountain of, a number of, a point of view, a posteriori, a problem (for sb.) to do, a scrap of, a series of, a sword of `Damocles, a variety of, a wilderness of, a(an), A, a, a-, A-bomb, A-OK, A-road, A-side, A.D., A.M., a/an, a/c, A/S level, AA, AAA,