pluperfect

n (also past perfect) such a form (in English had and a past participle, as in `As he had not received my letter, he did not come') 过去完成式（在英语中had加过去分词, 如此处例句中的had加received）.

plucky, plug, plug-hole, plum, plum pudding, plumage, plumb, plumb-line, plumber, plumbing, plume, plummet, plummy, plump, plumpness, plunder, plunderer, plunge, plunger, plunk, plural, pluralism, pluralist, pluralist (also pluralistic), plurality, plus, plus-fours, plush, plushiness, plushy, Pluto, plutocracy, plutocrat, plutocratic, plutonium, ply, plywood, PM, PMT, pneumatic,