Not only does it increase contrast and make your phone easier to look at, no backlight means longer battery life.

它不仅可以增加对比度并使你的手机更易于查看，而且没有背光意味着更长的电池寿命。

Pressure on the yen is being caused by the increasing contrast between the monetary policies of Japan and the rest of the rich world.

日本和其他富裕国家货币政策的反差越来越大，这给日元带来了压力。

So, if you have a piece of paper where the writing isn't very clear, you may increase the contrast so that the copier is able to copy more effectively.

因此， 如果您的纸张上的字迹不太清晰，您可以增加对比度， 以便复印机能够更有效地复印。