Listing 3. Empty classes used in pair take up more memory.

清单3.pair中使用的空类占用了更多内存。

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There is a good memory behind every pair of shoes.

Teenmix每一双鞋子的背后都有一个美好的回忆。

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There is a good memory behind every pair of shoes.

Teenmix每一双鞋子的背后都有一个美好的回忆。

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