s后面的p k t等清辅音(voiceless)一律自动变成b g d等浊辅音(voiced)
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送交者: HunHunSheng 于 2006-2-14, 18:35:35:
回答: Nearly no difference: /p/ in speak and /b/ in beak 由 Erxin 于 2006-2-14, 18:20:52:
英语教科书都这么说的
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