cataract
柯林斯词典
1. N-COUNT Cataracts are layers over a person's eyes that prevent them from seeing properly. Cataracts usually develop because of old age or illness. 白內障
In one study, light smokers were found to be more than twice as likely to get cataracts as non-smokers. 一項研究表明,輕度菸民患白內障的比例是不吸菸者的兩倍以上。
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