When on a spacewalk, astronauts use safety tethers to stay close to their spacecraft.
当宇航员在太空行走时，他们会使用安全绳以保持他们与飞船的距离。
2
Security threats are evolving at a rapid pace, and cloud businesses make it their job to stay on top of them and ensure the safety of every customer's data.
安全威胁正在不断快速演变，让自己凌驾于这些威胁之上，确保每一位客户的数据安全是云业务的职责所在。
3
Stop as quickly as safety permits and stay in the vehicle.