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Once purchased and trained, this would allow the casual user to save money and time, freeing up precious space in our busy lives to read a good book.

一旦购买并训练好了这样的机器人，临时用户就能节省金钱和时间，从我们的繁忙生活中腾出宝贵的空间来读一本好书。

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Referring to quantities which have been doctored in this way, one has complete symmetry between space and time.

在将这些物理量经过这种修改后，我们就得到了空间和时间的完全对称。

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When we do relativity, we'll be dealing with vectors in space-time and we'll find that different observers disagree on what is this and what is that.

我们学习相对论的时侯,会涉及到时空矢量的问题,我们会发现观测者们对于观测的结果,有着不同的看法

耶鲁公开课 - 基础物理课程节选

With this ability we can now identify, in 3D space and 4D time, the most offending sources of carbon in order to plug this holes and slow the pace of climate change.

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This places both the pill bottle in space and time.

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According to its rules, it is meaningless to ask where in space and time this mesh exists, because the mesh is the stuff of which space and time are composed.

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