You might get just a little bit tired out after the first few thousand kilometers, especially with all the oxygen tanks you'll have to be hauling up with you.

在爬完刚开始几千公里后，你可能会觉得有点累，特别是你还要带一大堆氧气罐一起爬上去。

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The only oddity was the oxygen tanks.

唯一奇怪的就是那些氧气罐。

youdao

They breathe through uncomfortable respirators or carry heavy oxygen tanks on their backs.

他们或通过防毒面罩，或携带沉重的氧气瓶进行呼吸。

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One of the oxygen tanks failed to empty normally during the ground test.

VOA: special.2009.07.22

Apollo had two oxygen tanks.

VOA: special.2009.07.22

Two large tanks in the service module held liquid oxygen.

VOA: special.2009.07.22