Joyce and Pete Cottrell, of N.H., were the first to backpack the entire official route of the American Discovery Trail, but they hiked segments out of sequence over two calendar years, finishing in 2003.是什么意思_Joyce and Pete Cottrell, of N.H., were the first to backpack the entire official route of the American Discovery Trail, but they hiked segments out of sequence over two calendar years, finishing in 2003.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句