The spelling of the word "Petong" can be explained using the International Phonetic Alphabet (IPA). The first syllable "Pe" is pronounced as "pɛ", with a short "e" sound. The second syllable "tong" is pronounced as "tɔŋ", with a nasal "o" sound. The letter "g" at the end of the word is silent. Therefore, the correct pronunciation of "Petong" is "pɛtɔŋ". This word may not be commonly used, but understanding its correct spelling and pronunciation through phonetic transcription can improve one's overall language skills.
The Chinese name of a species of copper of a white colour.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.