[翻译] 1970 年， 中国成功发射了第一颗人造地球卫星，成为世界上第五个独立自主研制和发射人造地球卫星的国家。
In 1970, China launched its first man-made earth satellite, ranking China the fifth country in the world to independently develop and launch man-made earth satellites.
[翻译] 1970 年， 中国成功发射了第一颗人造地球卫星，成为世界上第五个独立自主研制和发射人造地球卫星的国家。
In 1970, China launched its first man-made earth satellite, ranking China the fifth country in the world to independently develop and launch man-made earth satellites.
