D o 'b: Merlin and I have a couple of mini-projects that should see the light of day soon. And it's always fun to see what's happening in this field.

D O ' B： Merlin和我有很多微小的项目即将面世了，而且看着这个领域里正在发生的一切是那样的快乐。

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In this example, a extends B; however, the same error would still occur if a referenced B in any other way — as a method parameter, for example, or as an instance field.

在这个例子中，A扩展了b；但是，即使A用其他方式引用B，也会出现同样的问题——例如，以方法参数引用或作为实例字段。

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B: We need to know how long this product will last in the field.

B：我们需要知道产品在使用中可以有多长的寿命。

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The scientists most interested in this field, like Sean B.

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Atlanta will field one of the best young outfields in baseball after signing B.

WSJ: MLB 2013: Challengers gear up to take down Giants

For instance, if in the same field of endeavor, Charity A has better efficiencies than Charity B, ask Charity B why that is so or how it thinks it does a better job than Charity A. You even can use the ratios here as a benchmark for similar nonprofits not on the list (of which were are more than 1.2 million in the U.S.).

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