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不过，它是一个抽象类，因而需要被细分类。
It is abstract, though, so it is meant to be subclassed.
youdao
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请把这些资料仔细分类。
Please classify these data carefully.
youdao
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第三部分详细分析了从不同方面对体语进行分类。
The third part is the classification of body languages.
youdao
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第三部分详细分析了从不同方面对体语进行分类。
The third part is the classification of body languages.
youdao