介绍:
Day 4: ou ow oi oy au aw oo oo ea
ou: house out mouth count fountain mountain shout mouse
ow: cow towel clown owl crown brown flower tower
oi: coin oil point noise boil soil poison coil
oy: oyster boy cowboy soy toy
au: august sause sausage naughty autumn applause
aw: paw draw saw straw strawberry lawn
oo: moon zoo roof rooster boots food spoon room cool fool boom foolish oo: book cook good foot look hook
ea: head sweater sweat pear lead bear leather feather
