スマホの光と影:Light and shadow of smartphone


ただ、今後は視力が良い人が減るのは少し怖く感じます。

Depending on how you use your smartphone, it can be good or bad.

However, I feel a little scared that the number of people with good eyesight will decrease in the future.

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メルマガ「世の中に感動とおもしろさを!」

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