黑色素暂时的增加是罪魁祸首，这种物质让头发、眼睛和皮肤带上色彩。

A temporary increase in melanin, the substance that colors hair eyes and skin, is the culprit.

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黑色素暂时的增加是罪魁祸首，这种物质让头发、眼睛和皮肤带上色彩。

A temporary increase in melanin the substance that colors hair eyes and skin is the culprit.

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尽管液晶屏能提供全色彩和触摸功能，但其电池寿命较低、以及已认知的眼睛疲劳问题使得电子阅读市场的更新并非迫在眉睫。

Despite its ability to offer full color and touch, LCD screens didn't set the e-reading market on fire because of their low battery life and the perceived issue of eyestrain.

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