411 REFERENCE · Wiktionary
Gēlúnbù Dà Jiāohuàn
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Mandarin
Romanization
哥倫布大交換
411 REFERENCE · Wiktionary
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.