They often lay so many eggs—from fifteen to twenty—in the same foster-nest, that few or none can possibly be hatched.

它们经常在同一个寄养巢中产下 15 到 20 个卵， 以致很少或根本无法孵化。

It turns out this works no matter how many of the silver-facing coins you grab, whether it's all of them, a few, or none at all.

结果是不论你从原本那堆拿了多少枚银面向上的，要么全部银面向上的，要么一些或完全没有。

In fact, it is easier to create a good K-12 system than a good university system, the evidence being that many nations have created better elementary schools than ours, and few or none have created better universities.

事实上， 创建一个好的 K-12 系统比一个好的大学系统更容易，证据是许​​多国家创建了比我们更好的小学，但很少或没有创建更好的大学。