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The best sunglasses aren’t always the most expensive. No one with normal eye

游客2024-03-06  61
问题     The best sunglasses aren’t always the most expensive. No one with normal eyes needs sunglasses to 【B1】______ damage to their eyesight. But sunglasses do make life more 【B2】______. Tile eye itself can deal with a wide range of light intensity from bright sunlight to a dimly-lit room. It 【B3】______ closes down in bright sunlight so that less light can enter it. Actually bright light won’t harm your eyes. However, glare can lead to headaches as you 【B4】______ the muscles around your eyes and then the 【B5】______ in your neck. Reducing that glare with a good pair of sunglasses makes bright sun more 【B6】______ whether the glare comes from the printed page of a newspaper or from the 【B7】______ in front of you. But don’t use them to stare at the sun or a welder’s flame. No sunglasses will 【B8】______ you from such intense light.
    While you buy your sunglasses, 【B9】____________. You shouldn’t buy sunglasses without trying them on. They should fit comfortable but not too tightly. Tight spectacles can cause headaches, as do very heavy frames. 【B10】____________. Hold the glasses at arm’s length and look through them to test the lenses. You’ll be more likely to see any unevenness in the glass from a distance. 【B11】____________.
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