They are keen to avoid hierarchies among rescue-robots (because the loss of the leader would render the rest redundant).

他们热望在救援机器人当中避免等级(因为失去领导的话会使剩下的人失业)。

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Thus, try to avoid putting any classes or hierarchies into your project or home directory.

因此，请尽量避免将任何类或层次结构放入project或home目录。

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Avoid deep inheritance hierarchies.

避免深度继承层次。

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