But don't worry; most of the code is boilerplate, and if you just take it step by step you'll be fine.

但是不必担心；大部分代码都是样例，并且如果您按照它逐步执行，将不会遇到任何问题。

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This approach is slightly more complicated than the traditional one, but it provides step-by-step evaluation, and you can see each step as it executes.

这种方法比传统方法稍微复杂了些，但它支持一步一步的求值，在执行时您能看到每一步。

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This is not linear step-by-step progress, the boulder gradually nudged up the slope, but progress characterized by huge leaps and bounds forward.

这种进展不是以直线形式逐步取得的，不是将巨石缓缓推上斜坡，而是以巨大飞跃和大跨步前进为特点的进展。

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The acquisition of the Volvo automobile business by Geely is a good initial step, but it is a very small step by global standards.

FORBES: China's Auto Industry Shows Signs Of Impending Gridlock

"I hope it helps but of course our history is not so easy for many years and many different difficult situations but I think step by step we can make it better, " said Olga, who is Russian.

BBC: Russian Patriarch Kirill makes historic visit to Poland

But this step-by-step strategy is being blown away by events.

WSJ: The EU Waiting Game Is Over For Cameron