Well, we could have used weights to determine the second parent as well, but this way we ensure every parenting individual has a chance to participate in the breeding process.

噢，本来我们可以在 weights 数组里把另外一个双亲也确定下来，但是，这样我们可以确保每个可以成为双亲的个体都有可能参与繁衍过程。

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The breeding selection algorithm picks one parent by looking at the weights - in effect, every individual gets a chance to be a parent, but the number of parent slots is finite.

繁衍选择算法会查找weights数组，选择第一个双亲—其实，每个个体都有可能成为双亲，但是双亲位置的数目是确定的。

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Although the number of bones is roughly the same in all breeds, there is considerable variation in the size and shape of individual bones, as the result of selective breeding.

尽管大致上所有品种都拥有相同数量的骨头，但因选择性育种的缘故，狗狗骨头的大小和形状也会有相当大的差别。

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