The Nautilus Institute has been involved in energy projects in North Korea since 1992 and has collated what diplomats describe as the most credible snapshots of energy supply there.是什么意思_The Nautilus Institute has been involved in energy projects in North Korea since 1992 and has collated what diplomats describe as the most credible snapshots of energy supply there.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句