一定程度的房地产投机不但应该允许，而且是必要的。
A certain degree of speculation should not only be allowed but also necessary.
这些图表提供了一个整体概览，一定程度的模糊性是允许的。
They help to bring the overview across and some level of vagueness is allowed.
过程通过允许过程之间的调用提供某种程度的重用。
Procedures offer a certain level of reuse by allowing procedures to be called by other procedures.
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