2019-11-21 China Tests Mars Lander and Space Exploration
China showed off its Mars spacecraft during a landing test last week in the northern province of Hebei. China is planning to send a lander and rover to Mars next…
VOA英语教学网 - VOA LEARNING ENGLISH
一个让你免费在线学习VOA英语的好地方! 无须报名, 不收学费, 全年无休, 保证提高! (^_^)
China showed off its Mars spacecraft during a landing test last week in the northern province of Hebei. China is planning to send a lander and rover to Mars next…