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aa3 paa4
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aa3 爬 爬 爬 爬 爬 爬 .
aː ˧ WORD_BOUNDARY pʰ aː ˨˩ WORD_BOUNDARY
a a 3 WORD_BOUNDARY 爬 WORD_BOUNDARY 爬 WORD_BOUNDARY 爬 WORD_BOUNDARY 爬 WORD_BOUNDARY 爬 WORD_BOUNDARY 爬 WORD_BOUNDARY