A: Yesterday, I already stated at this rostrum that China's space endeavor is an integral part of mankind's peaceful exploration and utilization of outer space.
答：昨天我已在此介绍，中国的航天事业是人类和平探索和利用外空努力的重要组成部分。
A: Yesterday, I already stated at this rostrum that China's space endeavor is an integral part of mankind's peaceful exploration and utilization of outer space.
答：昨天我已在此介绍，中国的航天事业是人类和平探索和利用外空努力的重要组成部分。
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