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粵語辭叢

本初子午線

bun2 co1 zi2 ng5 sin3included in 1 dictionaries
維基辭典YuePhrase

Original phonetic: /puːn³⁵ t͡sʰɔː⁵⁵ t͡siː³⁵ ŋ̍¹³ siːn³³/

prime meridian