苹果公司的首席执行官史蒂夫·乔布斯相信这款产品，并开始寻找改进它的办法。

Apple's CEO, Steve Jobs, believed in the product and he began to find out ways of improving it.

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GQM通常被认为是一个自上而下的方法，它建议执行管理层角色是我们的开始点。

GQM is often perceived as a top-down approach, which suggests the executive role is the place to start.

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这使额外处理过程被执行，根据需要开始或停止实例，允许它加入集群。

This enables additional processing to be performed on an as-needed basis by starting and stopping the instance, and allowing it to join the cluster.

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And what it's saying semantically is, using that variable as my placeholder, have it walk through this collection, starting at the first thing, execute that code, then the next thing, execute that code, and so on.

它的语义意思就是，把这个变量应用为我的占位符，用它来遍历这个集合，从第一个元素开始，执行代码，然后下一个元素，再执行代码。

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