To do so, it will pick off the first element of the list — the head — to do the processing on that element, and recursively pass the rest of the list to itself again.

为此，它将选取列表的第一个元素 — 列表头部 — 来对该元素执行处理，然后再递归式地将列表的其余部分传递给自身。

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A structural element can be a subsystem, a process, a library, a database, a computational node, a legacy system, an off-the-shelf product, and so on.

一个结构组件可能是一个子系统，进程，库，数据库，计算结点，馈赠系统，按需产品等等。

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Turn the burner off once the milk is boiling, but leave the saucepan on the element or gas grate.

当牛奶煮沸时把火关掉，但不需要把平底锅移开。

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As it happened, development rights for a large parcel between Dyer Avenue and Tenth Avenue on 42nd Street hinged on including a performing-arts element to make up for two Off-Broadway houses that had been razed to allow for a subway extension.

WSJ: Frank Gehry | Pershing Square Signature Center | By Julie V. Iovine