The Pentagon has repeatedly said that the space plane is simply a “test bed” for other technologies.

五角大楼曾多次表示，空天飞机仅是一个技术“试验床”。

youdao

The Pentagon has repeatedly said that the space plane is simply a “test bed” for other technologies.

五角大楼曾多次表示，空天飞机仅是一个技术“试验床”。

youdao