The mausoleum is encircled by a double wall with the inner structure extending more than 2 500 metres long and the outer one more than twice as long.是什么意思_The mausoleum is encircled by a double wall with the inner structure extending more than 2 500 metres long and the outer one more than twice as long.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句