这样的视镜及标志就属于须对产品实体予以重新设计才可消除的警告缺陷，而不仅仅是将书写的警告标签贴到产品之上。

Such mirrors and signals are warnings that would require physical redesign of the product, and not just the attachment of written warning labels on the product.

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可预测性并不是减少或消除噪音负面影响的唯一变量。

Predictability is not the only variable that reduces or eliminates the negative effects of noise.

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提供不麻烦简单免费的使用可高效消除承诺风险。

Offering no-hassle free trials was sufficient to remove the commitment risk.

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