这幅画的主体是国际空间站。
这张照片是印度洋上壮观的日落景象，拍摄者是国际空间站的宇航员。
This spectacular image of sunset on the Indian Ocean was taken by astronauts aboard the International Space Station (ISS).
人类已经在太空开发运营方面取得了宝贵的经验，特别值得一提的是国际空间站的运行。
Valuable experience has been gained with human operations in space, particularly with the International Space Station.
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