CCTV9英语新闻：Space lecture features Q&A session
时间：2019-02-18 作者：英语课 分类：CCTV9英语新闻2013年07月
The space lecture featured a Q&A session towards the end.
Students’ questions ranged from what space looks like from Tiangong-1 to what problems the human body has faces in space.
One of the students asked if the astronauts can see space junk and how Shenzhou-10 will deal with any encounter with space debris 1. Lecturer Wang Yaping, and the commander of Shenzhou-10 interacted with the students. Wang Yaping told the students about what precautions were taken to avoid collisions between Shenzhou-10 and space junk. She also demonstrated how weightlessness results in a loss of direction in space.
Nie Haisheng told the students that weightlessness poses challenges to human bodies and astronauts have to keep exercising and take medicine to stay healthy.
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debris
n.瓦砾堆，废墟，碎片
参考例句：
After the bombing there was a lot of debris everywhere.轰炸之后到处瓦砾成堆。
Bacteria sticks to food debris in the teeth,causing decay.细菌附着在牙缝中的食物残渣上，导致蛀牙。