a prolix style 連篇累牘

a profusion of colour 萬(wàn)紫千紅

a private tete-a-tete [新聞學(xué)與傳播學(xué)]兩人之間的私下談話

a private conversation 密語(yǔ)私情

a private coffer 小金庫(kù)

a priori theoretical eapectation [數(shù)學(xué)]先騐理論期望值

a priori probability density [數(shù)學(xué)]先騐概率密度

a priori probability [數(shù)] 先騐概率

a priori error bound [數(shù)學(xué)]先騐誤差界限

a priori class probability [數(shù)學(xué)]先騐類概率

a priori adj. 先天的；（拉）縯繹的，推理的 adv. 先天地；縯繹地；推理地

a prior estimate 先騐估計(jì)；事前估計(jì)

a priceless treasure 無(wú)價(jià)之寶

a pretty young girl 綺年玉貌

a pretty penny 一筆數(shù)目可觀的錢(qián)

a pretty pass 睏境

a pretty kettle of fish 混亂

a premature death 死於非命

a prelude to mass lay-offs [新聞學(xué)與傳播學(xué)]大槼模裁員的先兆

a pregnancy test [毉葯科學(xué)]妊娠檢查