本文以一个价格下限模型为例，说明通过控制旅游者数量的方式限制经营者的可能实现途径。
This study, with price floor model as an example, indicates that it is feasible to limit the operators by controlling the number of tourists.
还应该清楚的是实现项目组合管理实践的途径有很多，并且那些实践可能迭代地实现。
It should also be made clear that there are multiple paths to an implementation of portfolio management practices and that these practices may be iteratively implemented.
不管你选择什么途径还清债务，尽可能地将较多的钱用于实现这个目标。
Regardless which method you choose for attacking your debt, put as much money as possible toward this goal.
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