Unit 6: [u],[ ʊ ], [h], [m], [n], [ ŋ] · Unit 7: [r], [ l ], [ ] , [ ] , [ ] · Unit 8: [a I ],[ a ʊ ], [ ɔ I ],[j],[ w ] · Unit 9: 常見的組合[hw], [tr], ...
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