杰夫里·施罗德：(美国国家宇航局科学家)我想这个飞行器是可行的，但是加个不菲。

Jeffrey Schroeder (NASA scientist) : I think we can do it but it would be expensive.

youdao

杰夫里·施罗德：(美国国家宇航局科学家)我想这个飞行器是可行的，但是加个不菲。

Jeffrey Schroeder (NASA scientist) : I think we can do it but it would be expensive.

youdao