说明：  云计算使 IT 机构能够极大地提高硬件利用率，并能够在极短时间内升级到巨大容量， 而不必频繁地投资构建新的基础设施、培训新员工或颁发软件许可证。云计算还创造 出新的机会，使人们能够在较短时间内使用更少投资构建一种更高级的网络服务
(Cloud computing enables it organizations to greatly improve hardware utilization and upgrade to huge capacity in a very short time, Instead of frequently investing in new infrastructure, training new employees, or licensing software. Cloud computing also creates New opportunities, so that people can use less investment in a shorter period of time to build a more advanced network services)