常见字母组合2:
thr: three, throat, thrill, thrones, thrust.
ar: star, cart, hard, park, yard, arm, art, dark.
ch: much, lunch, chop, chin, chill, cheat, cheese.
or: short, pork, fork, horse, morning, forth.
ou: out, shout, mouse, south, sprout.
ow: owl, now, how, cow, wow, down, brown.
ow: snow, blow, low, grow, mow.
er: her, serve, term, verse.
ur: nurse, fur, turn, burn, curb.
ir: bird, girl, first, skirt, shirt, birth.
oi: coin, oil, boil, noise, point, join.
oy: boy, toy, joy, Troy.
oo: book, look, cook, food, tooth, room, moon.
wor: worm, work, world, worse.
igh: night, right, high, light, tight.
all: ball, wall, call, small, tall.
alk: walk, talk, stalk, chalk, sidewalk.