a peak,5,229.8 m(17,147 ft) high,of the St. Elias Mountains in southwest Yukon Territory,Canada,near the Alaskan border是什么意思_a peak,5,229.8 m(17,147 ft) high,of the St. Elias Mountains in southwest Yukon Territory,Canada,near the Alaskan border在线翻译_英语_读音_用法_例句