Physical studies of the eyes and retinas of fish show that the majority can obtain a clearly focused image, detect motion, and have good contrast-detection ability.

物理研究鱼的眼睛和视网膜显示大多数鱼能获得清晰对焦的图像，侦测动作，并具有良好的反差度检测能力。

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Instead of producing a clearly focused image, the various radio waves generate a mess.

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Ms Nooyi has also devoted resources to cultivating a corporate image focused on global social responsibility.

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It also suffered from wrongheaded marketing that focused on "image" rather than hard-core golf values under its former chief executive, ex-Revlon head George Fellows.

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