1. short /ɒ/ - long /ɔ:/ - caught /ɔ:/ (in IPA symbols)
2. book /bʊk/ - look /lʊk/ - took /tʊk/密钥索引
3. sit /sɪt/ - bit /bɪt/ - kit /kɪt/
4. pan /pæn/ - man /mæn/ - can /kæn/
维夫饼干
5. big /bɪɡ/ - dig /dɪɡ/ - pig /pɪɡ/
6. run /rʌn/ - fun /fʌn/ - sun /sʌn/
7. bed /bed/ - red /red/ - fed /fed/
8. hat /hæt/ - bat /bæt/ - cat /kæt/
羟基氧化钴9. park /pɑ:k/ - dark /dɑ:k/ - mark /mɑ:k/
10. hope /həʊp/ - rope /rəʊp/ - cope /kəʊp/