The Chinese word "波多黎各" is formed via phonetic transliteration of the English name "Puerto Rico", where each character is chosen solely for its sound: 波 (bō) approximates "Puer", 多 (duō) mimics "to", 黎 (lí) matches "Re", and 各 (gè) corresponds to "co", with the individual characters' meanings being irrelevant in this context.