我看過一個視頻，大概意思是美國也做了幾套計劃，但因各種原因都未能實施。我覺得關鍵還是中國國土太遼闊了，難度太大了。

來源: 小米幹飯於 2026-04-03 10:13:47 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.