A smart phone app could delay the need for reading glasses in older people by teaching the brain to process blurred images.
一款智能手机的应用程序通过训练大脑对模糊图像进行处理，可能会延缓老年人对眼镜的需求。
Cell phone use has blurred the boundaries between work and non-work time, increasing stress and tension within families and between friends.
使用手机模糊了工作时间和非工作时间之间的界限，增加了家庭和朋友之间的压力和紧张气氛。
Cell phone use has blurred the boundaries between work and non-work time, increasing stress and tension within families and between friends.
使用手机模糊了工作时间和非工作时间之间的界限，增加了家庭和朋友之间的压力和紧张气氛。
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