placebo

n. 安慰剂

pivot, pivotal, pixel, pixie (also pixy), pizza, pizzicato, Pk, pkg, pkt, Pl, pl of vertex., placard, placate, placatory, place, place-bet, place-kick, place-mat, place-name, place-setting, placement, placenta, placental, placid, placidity, placidly, placket, plagiarism, plagiarist, plagiarize, plagiarize, plagiarise, plague, plague-ridden (also `plague-stricken), plaice, plaid, plain, plain clothes (esp of police officers), plain dealing, plain flour, plain-clothes man,