主要有以下几点：传统的国际音标中的音标和字母通过两套符号表现；
The following main points: the traditional IPA in the two sets of phonetic symbols and letters through the performance;
主要有以下几点：传统的国际音标中的音标和字母通过两套符号表现；
The following main points: the traditional IPA in the two sets of phonetic symbols and letters through the performance;
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