It is the model we look to for an understanding of object-oriented programming today.

它是我们今天理解面向对象编程的范例。

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First of all, a good understanding of object oriented programming is crucial.

首先，深刻理解面向对象编程至关重要。

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First of all, a good understanding of object oriented programming is crucial.

首先，深刻理解面向对象编程至关重要。

youdao