ch chest 胸膛 [Card #13; 字卡第13張: 第4個單字, 字母組合發音 ch]

Some more examples(更多例字):
Initial position(首):chapter, chapel, channel, chap, chat, chitchat, chaff, chant, chance, challenge, champ, champion, charity, chastise, chamber, change, chase, chafe, chain, chair, chalk, charge, chart, charm, char, charcoal, check, chest, cherish, cherry, chess, cheap, cheat, cheek, cheep, cheese, cheer, chief, chin, chip, chill, chili, chick, chicken, chisel, chimney, china, child, children, chide, chime, chive, chop, chopstick, choke, choice, chore, chocolate, chow, chew, choose, chug, chum, chuck, chuckle, chunk, churn, chirp

Final position(尾):attach, reattach, detach, ranch, branch, blanch, bench, quench, stench, clench, unclench, drench, trench, wrench, squelch, French, rich, enrich, sandwich, inch, pinch, cinch, clinch, flinch, each, reach, teach, preach, peach, beach, bleach, breach, leech, beseech, speech, spinach, perch, search, research, such, much, mulch, lunch, bunch, punch, hunch, munch, brunch, crunch, scrunch, ouch, couch, pouch, vouch, crouch, grouch, slouch, poach, approach, encroach, cockroach, ostrich, touch, arch, starch, porch, torch, church, lurch, launch, staunch

Medial position(中):achieve, mischief, enchant, franchise, merchandise, merchant, purchase, surcharge, orchard, artichoke, linchpin, niche