Playing on a practice tree with her older brother and sister, she's already learning to use her tail as a safety line...under her father's close watch.

通过和哥哥姐姐练习在树上玩耍，她已经学会用尾巴当安全索，一切都在父亲的注视之下。

For one thing, Atlas used to have a tether that would provide it with power and communications -- and sometimes act as a safety line to stop it from falling over.

一方面，阿特拉斯曾经有一根系绳可以为它提供动力和通讯——有时还可以作为一条安全线来防止它翻倒。