2019年敬请关注！
简介：<p> Eight days, three hours, 18 minutes, 35 seconds. That's the total duration of the most important and celebrated space mission ever flown - Apollo 11 - when we first stepped foot on the moon...</p>…
2019年敬请关注！
简介：<p> Eight days, three hours, 18 minutes, 35 seconds. That's the total duration of the most important and celebrated space mission ever flown - Apollo 11 - when we first stepped foot on the moon...</p>…