第7章 National Flag Mysteriously Disappeared
- 月球:我們神秘的近鄰
- 傅民杰
- 1773字
- 2016-08-31 10:58:53
On July 21,1969,the astronauts on Apollo 11left the first human footprint on the moon and firmly planted an American national flag there.But it was confusing that the flag mysteriously disappeared bef...
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