由于仅剩下一个美国的模块需要运送，空间穿梭计划现在将重点放在了为空间站建立一个配件储备库上。

"We're taking the big ones, " Smith said. "And not only are they the big ones – they're the ones deemed most critical. That's why they're going up first.

youdao

由于仅剩下一个美国的模块需要运送，空间穿梭计划现在将重点放在了为空间站建立一个配件储备库上。

"We're taking the big ones, " Smith said. "And not only are they the big ones – they're the ones deemed most critical. That's why they're going up first.

youdao