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Initial/Medial position(首/中):stand, standard, stack, stash, static, staff, stab, stagger, stammer, stamina, stamp, stampede, stagnant, stallion, stadium, station, stationery, stationary, stable, staple, statue, status, stage, stake, stale, state, stay, stain, staid, stair, stare, star, start, stark, starch, starve, startle, stalk, stall, staunch, stem, step, doorstep, sidestep, overstep, stellar, stereo, stethoscope, stench, sterilize, sterile, steroid, steak, steady, stealth, steal, steam, steel, steep, steer, stew, still, stiff, stigma, sticky, sticker, stick, stink, sting, stingy, stitch, stimulate, stipend, stilt, stifle, stylus, stop, stock, stomach, stomp, stow, stout, stone, stoke, stove, store, storage, story, stork, storm, stool, stoop, stuck, study, stud, stub, stubborn, stuff, stutter, stump, stumble, stunt, student, studio, stupid, stupefy, sturdy, stir, sterling, stern, sty, style, stylish, institute, instant, instead, instill, install, uninstall, reinstall, bestow, substance, rooster, dumpster

Final position(尾):past, vast, mast, last, outlast, blast, fast, steadfast, cast, broadcast, forecast, newscast, outcast, overcast, aghast, flabbergast, gymnast, contrast, downcast, best, west, nest, pest, jest, zest, vest, invest, rest, arrest, test, contest, protest, detest, attest, lest, blest, chest, crest, wrest, quest, request, conquest, congest, manifest, suggest, divest, east, least, feast, cyst, list, enlist, checklist, backlist, fist, gist, mist, wrist, twist, exist, coexist, assist, insist, desist, resist, persist, consist, first, headfirst, boast, coast, roast, toast, cost, lost, host, post, compost, most, almost, utmost, innermost, ghost, moist, hoist, foist, frost, forest, honest, boost, joust, must, bust, robust, gust, disgust, rust, crust, dust, sawdust, stardust, just, adjust, unjust, trust, entrust, distrust, mistrust, thrust, exhaust, burst, waste, waist, enthusiast, analyst

-ist (person): artist, specialist, dentist, hygienist, therapist, chemist, pharmacist, physicist, scientist, biologist, neurologist, psychologist, psychiatrist, dermatologist, ophthalmologist, optometrist, nutritionist, ecologist, geologist, meteorologist, archaeologist, anthropologist, radiologist, acupuncturist, technologist, economist, sociologist, modernist, propagandist, lobbyist, hobbyist, novelist, columnist, satirist, journalist, diarist, tourist, jurist, unionist, motorist, cyclist, motorcyclist, finalist, loyalist, conversationalist, linguist, typist, florist, herbalist, stylist, publicist, receptionist, pianist, violinist, cellist, medalist, sensationalist, capitalist, industrialist, environmentalist, antagonist, perfectionist, idealist, realist, theorist, pragmatist, conformist, nonconformist, strategist, methodologist, rationalist, minimalist, literalist, mentalist, hypnotist, humanist, activist, fatalist, pessimist, optimist, opportunist, moralist, purist, futurist, evangelist, Buddhist