有些地方的定义特征是过去遗留下来的或非物质性的文化特性，业已消失或不可见的。

Where some defining characteristics are left over from the past or cultural preferences, others have disappeared or remain invisible.

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MDD的定义特征是，此模型已经成为软件设计的主要工具，它把许多注意力从相关的程序代码上转移开。

The defining feature of MDD is that models have become primary artifacts of software design, shifting much of the focus away from the corresponding program code.

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癌症的一个定义特征是快速产生异常细胞，这些细胞超越其通常边界生长并可侵袭身体的毗邻部位和扩散到其它器官。

One defining feature of cancer is the rapid creation of abnormal cells that grow beyond their usual boundaries, and which can then invade adjoining parts of the body and spread to other organs.

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