如果你是付费给服务器租赁商，你不喜欢他们了(或者他们不喜欢你了)，你可以带着你的网站走人去找另一家。
If you're paying for a web hosting service and you don't like it (or they don't like you) you can pack up your site and move it to another host.
LARD引入了一种巧妙的租赁方法，将对相同url的请求转发至相同的服务器，借此提升系统的整体性能。
LARD increases the overall performance of the system by introducing a subtle tenancy to forward requests for the same URLs to the same servers.
因为服务器是按小时租赁的，只在需要时才运行额外的服务器会有意义吗？
Because servers are rented by the hour, would it make more sense to run extra servers only when needed?
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