pl plug 塞子, 栓 [Card #4; 字卡第4張: 第5個單字, 字母組合發音 pl]

Some more examples（更多例字）：plan, plant, plank, planet, plastic, placid, plaster, platform, plaque, platinum, plaza, placard, platitude, plateau, plate, place, plaid, plait, plain, plaintiff, plane, play, plagiarize, placate, plausible, pledge, plenty, plea, plead, please, pleat, pleasant, pleasure, plight, pliant, pliable, pliers, plop, plot, plod, plow, plug, plugin, plus, plush, pluck, plural, plum, plumb, plump, plummet, plumber, plunder, plunge, Pluto, ply, imply, reply, comply, compliant, compliance, complacent, complete, deplete, implement, complement (complement vs. compliment), compliment, contemplate, complicate, complex, complexion, complain, explain, explicit, exploit, explore, implore, deplore, explode, implode, implicit, accomplish, aplomb, template, duplicate, implicate, replace, replenish, replica, diploma, diplomatic, display, discipline, amplify, duplex, perplex, surplus, ploy, deploy, employ