同样，为了防止错误传递到周围的范围或流程，主范围需要一个错误处理程序。

Again, the main scope needs a fault handler in order to prevent the fault from being propagated to the surrounding scope or process.

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如果你问公众什么会导致癌症，他们会说是水果和蔬菜上的农药，但这其实是一个被错误传递的信息。

"If you ask the public what is causing cancer, they'll say it's the pesticides on fruits and vegetables, but that's the wrong message to give people," Ames said.

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