Maybe your eyes are dry, your vision is blurry at the end of the day, or you have a persistent headache that just won't quit?

一天下来也许你觉得眼睛干涩，视力模糊，或者感觉持续性头痛？这些都是“数码视觉疲劳”的症状。

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Albert had a persistent headache that lasted for three days.

艾伯特连续头痛了三天。

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Cough tends to recur or is accompanied by high fever, rash or persistent headache.

反复咳嗽伴有高烧、皮疹或持续性头痛。

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Speaking by phone from her hospital room, Ms. Feng said that aside from a persistent headache, she was gradually recovering from the procedure earlier this month and would gladly return home if she were allowed to leave.

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