There are two ways to create a reference from an old object to a young object.

有两种创建从老对象到年轻对象的引用的方法。

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Either one of the references contained in an old object is modified to refer to a young object, or a young object that refers to other young objects is promoted into the older generation.

要么是将老对象中包含的引用修改为指向年轻对象，要么是将引用其他年轻对象的年轻对象提升为更老的一代。

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The most powerful computers struggle to reliably recognize the shape of an object, the most elementary of tasks for a ten-month-old kid.

最强大的计算机都难以可靠地识别出某个物体的形状，而这对于10个月大的孩子来说是最基础的任务。

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For some on the right, who object even to the idea of a federal income tax, the mandate is an old fight reborn.

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But if money is no object, you might consider a more adventurous choice of lodging like, say, an old Boeing 727.

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