At some point in its execution, the each method executes the yield instruction giving it an argument that happens to be the next element of the list in the case of the Array class's each method.
在执行中的某个时刻，each方法执行yield指令，在Array类的each方法的情况下，给该指令一个正巧成为列表中下一个元素的参数。
These few lines of code yield well-formatted HTML that has a element followed by a and then a element with a single paragraph — utterly simple.
仅仅几行代码就会生成格式良好的 HTML，其中有一个 元素，后面是 ，然后是 元素和一个段落，太简单了。
Add up the element scores to yield an overall product maturity score on a scale from 0 to 100.
把元素的评分相加得出一个整体产品成熟度评分，范围是0到100。
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