The visual impact of a well-designed site can be crucial in marketing a product or a service but will be less than useless if the site does not hold the information your audience expects.

在交易一件产品或一项服务但是将是设计得很好的站点的视觉的影响能是关键的不到无用如果站点不容纳信息，那么你的观众期待。

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Use this product to clean surface is useless, because solute only for concrete work.

把这个产品使用到干净的表面是没有用的，因为溶解剂只对混凝土起作用。

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The crucial is their product is useless or harmful.

最关键的，他们的产品要么无效，要么有害。

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However, when connectivity and applications are used with mobile devices, the largely useless product becomes a product of services.

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All the other scientists who had attempted this, including the glass experts at Corning, found that their concoctions were gelling too early, resulting in a useless product.

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The Eaton Vance product carries a 2.25% front-end load, making it useless for a short-term investor.

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