China successfully launched its first man-made earth satellite on April24,1970.
China successfully launched its first man-made earth satellite on April24,1970.
中国于1970年4月24日成功地发射了第一颗人造地球卫星。
China successfully launched its first man-made earth satellite on April24,1970.
中国于1970年4月24日成功地发射了第一颗人造地球卫星。