Sunlight, free radicals, aging and diet can affect your sight.

阳光，自由基，衰老，饮食可以影响到你的视力。

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Although aging puts people at greater risk for serious eye disease and other eye problems, loss of sight need not go hand in hand with growing older.

尽管年龄变老使人们在患严重眼科疾病和其他眼疾方面的风险增加，年龄增长不再是失明的原因之一。

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Bill even brought a few of his aging OSS buddies on board, and the contrast between them and everyone else at the agency was a sight to behold.

CENTERFORSECURITYPOLICY: Center For Security Policy