1 p /s/ cups
2 t /s/ hats puts
3 k /s/ cakes books desks works worked /t/
4 f /s/ roofs
siz ziz
s加其他清辅音 /iz/ classes /klæsiz/ worked /t/
一般读zoos /z/ cleaned /d/
1 p /s/ cups
2 t /s/ hats puts
3 k /s/ cakes books desks works worked /t/
4 f /s/ roofs
siz ziz
s加其他清辅音 /iz/ classes /klæsiz/ worked /t/
一般读zoos /z/ cleaned /d/