a profusion of colour 萬紫千紅

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 密語私情

a private coffer 小金庫

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

a priori probability density [數(shù)學(xué)]先驗(yàn)概率密度

a priori probability [數(shù)] 先驗(yàn)概率

a priori error bound [數(shù)學(xué)]先驗(yàn)誤差界限

a priori class probability [數(shù)學(xué)]先驗(yàn)類概率

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

a prior estimate 先驗(yàn)估計(jì)；事前估計(jì)

a priceless treasure 無價(jià)之寶

a pretty young girl 綺年玉貌

a pretty penny 一筆數(shù)目可觀的錢

a pretty pass 困境

a pretty kettle of fish 混亂

a premature death 死于非命

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

a pregnancy test [醫(yī)藥科學(xué)]妊娠檢查

a practical joke 惡作劇