更多信息所带来的好处就是，可以更早地捕捉到某些类型的错误，而动态类型语言只有到运行时才能检测到这些错误。

One of the benefits of the additional information is the ability to catch certain kinds of errors that a dynamically typed language won't detect until run time.

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这个库包含在运行时创建类型所需的所有信息。

The library contains all information needed to create a type at runtime.

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运行时，它能够从该行提取足够的信息来确定处理类型。

At runtime, it can extract enough information from the row to decide on the type of processing.

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