您好，Spine Professional是永久性许可证。 如果您的年收入少于$ 500,000美元，您无需担心，则无需每年续订Spine。
Hello, Spine Professional, which is personal, is a perpetual license. If you make less than $500,000 USD in annual revenue you have nothing to worry about, you don't need to renew Spine every year.
