https://cn.vogon.today/%e9%96%8b%e5%a7%8b%e9%9b%9c%e8%aa%8c/%e7%82%ba%e4%bb%80%e9%ba%bc%e6%b3%a2%e9%9f%b3%e9%9c%80%e8%a6%81%e6%9b%b4%e5%a4%9a%e6%99%82%e9%96%93%ef%bc%88%e5%92%8c%e9%87%91%e9%8c%a2%ef%bc%89%e4%be%86%e6%89%93%e9%80%a0%e7%a9%ba%e8%bb%8d%e4%b8%80/
為什麼波音需要更多時間(和金錢)來打造空軍一號?