A leatherback sea turtle recently completed the longest recorded migration of any sea vertebrate: 12,774 miles (20,558 kilometers) across the Pacific Ocean.是什么意思_A leatherback sea turtle recently completed the longest recorded migration of any sea vertebrate: 12,774 miles (20,558 kilometers) across the Pacific Ocean.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句