所使用的病因类别范围越广，这些类别越可能列于最主要的死亡原因之中。

The broader the cause categories used, the more likely they will rank among the top leading causes of death.

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类别中的变数栏位与全域或函式变数类似，但它只能在类别范围中作用，而且可以具有控制可视性与用法的不同属性。

A variable field in a class is similar to a global or function variable, except that it is scoped to the class and it can have various attributes governing its visibility and usage.

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迫切需要进行的一项改进是，将类别类型的范围限制为个人测试计划的能力。

A much-needed enhancement is the ability to limit the scope of category types to individual test plans.

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