po-faced

adj (Brit infml derog 口, 贬) with a too solemn or disapproving expression 一本正经的; 不以为然的.

pluralist (also pluralistic), plurality, plus, plus-fours, plush, plushiness, plushy, Pluto, plutocracy, plutocrat, plutocratic, plutonium, ply, plywood, PM, PMT, pneumatic, pneumatically, pneumonia, PO, poach, poacher, POB, pock, pock-marked, pocked, pocket, pocket-book, pocket-knife, pocket-money, pocketful, pod, podginess, podgy, podiatrist, podiatry, podium, poem, poet, Poet Laureate (also Laureate),