换而言之，对于处在2010年的我们，会说法语对理解这个世界真的如此不可或缺么，还是说，法语是一种格调的标志？
That is, is knowing French really so obviously central to engaging what we know in 2010 as the world, or is it that French is a kind of class marker?
换种我认为更贴近事实的说法，它们是通过赋值而得到切线的近似值的，一种占位符。
Another way to say it, and I think that is probably closer to the truth, is that these things are somehow placeholders to put values and get a tangent approximation.
换另外一种说法就是，这个体系是把操作指南复制下来制造出一个新的产品，而不是直接复制本体，这个过程有很多优势(Blackmore1999, 2001)。
Put another way, this system copies the instructions for making a product rather than the product itself, a process that has many advantages (Blackmore 1999, 2001).
换另外一种说法就是，这个体系是把操作指南复制下来制造出一个新的产品，而不是直接复制本体，这个过程有很多优势(Blackmore1999, 2001)。
Put another way, this system copies the instructions for making a product rather than the product itself, a process that has many advantages (Blackmore 1999, 2001).
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