That is to say, they wouldn't be able to walk on the Moon or work outside the International Space Station.

也就是说，他们不能在月球上行走，也不能在国际空间站外工作。

youdao

Why do I need television when I can go outside and explore, or get active, or take a walk with a friend?

为什么我能出外探索时，能活跃起来时，能和朋友促膝交谈时我却要留在家里看电视？

youdao

Morning routines vary between families. Some shower (three minutes, cold water), others wash clothes (outside, in buckets, cold water), or exercise (walk round the yard).

中心各“家庭”每天早上的例行事务各不相同：一些“家庭”是淋浴(三分钟，用冷水)、一些是洗衣服(在户外，用水桶，同样是冷水)、还有一些是锻炼(围着操场走)。

youdao

Walk outside when you can, or go to a shopping mall and walk inside in inclement weather.

FORBES: How To Stay Healthy

In her community near Cleveland, Ohio, people were afraid to go to church, walk in the street or let children play outside, she said.

CNN: 1918 flu survivors share memories as research continues