In case of a backward jump, the navigation continues at the target activity, and, as a result, some activities may be executed again, that is depending on the control flow.

对于向后跳转，导航将在目标活动继续执行，结果可能会再次执行某些活动，这具体取决于控制流。

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In case of a backward jump, activities may be executed multiple times which also may have effects on the process.

对于向后跳转，可能多次执行活动，这也可能对进程有影响。

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There’s Georgia May Jagger, photographed by Mario Testino for Versace, evidently at the moment she fell backward over a purple velvet chair and landed on a white fur blanket.

Georgia May Jagger，在Mario Testino为范思哲拍摄的广告中，很明显的向后躺在铺有白色皮毛的紫色天鹅绒椅子上。

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But this prescription may be backward.

WSJ: Steven Pinker: Why Violence Is Vanishing

Some researchers suggest that parents may gain clarity by working backward from a longer-term goal.

CNN: Should babies be allowed to 'cry it out'?

It now turns out, they may have had it exactly backward.

FORBES: Christmas and the Adoption of the Pagan Solstice