The Andes mountains, which span the entire western coast of South America, formed when the Nazca plate subducted under the South American plate.是什么意思_The Andes mountains, which span the entire western coast of South America, formed when the Nazca plate subducted under the South American plate.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句