Stem cells are unspecialized cells that have not yet developed a specific function.

干细胞是还未有特定机能的非专业细胞。

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An unspecialized class template cannot be used as a template argument in a base class list.

不能将非专用化的类模板用作基类列表中的模板参数。

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It is invalid to use an unspecialized template class name as a template parameter in a base class list.

将非专用化的模板类名用作基类列表中的模板参数是无效的。

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