多年来，IT行业一直设想让企业将其应用迁移到云，用基于云的数据中心替代现有物理数据中心。同时，更多的企业在决策中也采取了“云优先”的战略，特别是新兴市场，其具备强大功能的新技术和商业模式帮助企业推动创新，并带来显著的机遇。
例 Liberty is not easy， but far better to be an unfettered fox， hungry and threatened on its hill，than a well-fed canary， safe and secure in its cage.
the ability to undergo or be affected by a given treatment or action: the capability of glass in resisting heat.
