Depending on how the tool is used, characteristic chip page patterns and microscopically distinguishable polishes develop near the edges.

特有的碎片掉落后的样子，和非常（显微镜下才可观察的）光滑的平面出现在边缘的部分，当然这种状况完全取决于你怎样来使用工具。

So it sometimes will get the right answer using secondary characteristics, which is exactly what we're trying to explain.

- 因此， 它有时会使用次要特征得到正确的答案，这正是我们试图解释的。

Then, she's going to tell us how she used those personal characteristics or why those personal characteristics were important in the jobs that she's already done.

然后，她将告诉我们她如何使用这些个人特征， 或者为什么这些个人特征在她已经完成的工作中很重要。

When we say 'the … one', we describe a person by using a particular and prominent characteristic they have. If you're very tall, you might be 'the tall one'.

当我们说“the … one”时，我们用一个人所具有的特定且突出的特征来描述一个人。如果你很高，你可能是“the tall one”。

In geometry, for example, when we wish to prove something about all triangles, we draw a particular triangle and reason about it, taking care not to use any characteristic which it does not share with other triangles.

例如，在几何学中，当我们想证明所有三角形的某些东西时，我们会画出一个特定的三角形并对其进行推理，注意不要使用它与其他三角形不共享的任何特征。