Now it's very important that you stretch before pumping iron or you might pull a muscle.

现在很重要的一点是，你要在举重前要做下伸展运动，否则会拉伤肌肉的。

And who's going to be changing the diapers when you're pumping iron in a federal prison? Huh?

那么在你蹲联邦大牢的时候 谁来换尿片啊? 哼?

Well these bacteria aren't getting swol at the gym pumping iron but like any other living creature, they are evolving.

好吧， 这些细菌不会在健身房抽铁时肿胀， 但就像任何其他生物一样，它们正在进化。

So, for you young kids that aspire to be the next Arnold or world heavyweight champion, pumping iron can be okay, just make sure you do right and do it safely!

所以，对于你们这些渴望成为下一个阿诺德或世界重量级冠军的孩子们来说，举重是可以的，只要确保你做的正确并且安全就可以了！

If you're wondering how astronauts cope with the sheer tedium of pumping iron for two hours every day – while teams on the ground monitor their vital signs and provide coaching – don't worry.

如果你想知道宇航员是如何应对每天两小时乏味的举重训练，同时接收地面上的团队则监控他们的生命体征并提供指导的话——我来给你揭秘一下。