与美国的实验一样，中国的第二次实验与一次的关键性差异在于其没有产生任何宇宙垃圾。

The crucial difference was that, like America's test, the second Chinese one did not create any mess.

youdao

与美国的实验一样，中国的第二次实验与一次的关键性差异在于其没有产生任何宇宙垃圾。

The crucial difference was that, like America's test, the second Chinese one did not create any mess.

youdao