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BNC: 19411 COCA: 14871
cataract
kætərækt ˈkætəˌrækt
Word forms: plural cataracts
1 N-COUNT [usually plural, NOUN n] 白内障 Cataracts are layers over a person's eyes that prevent them from seeing properly. Cataracts usually develop because of old age or illness. 白内障
  • In one study, light smokers were found to be more than twice as likely to get cataracts as non-smokers.

    研究表明,即使抽烟不多的人也比不抽烟的人患白内障的概率高出一倍多。

  • Age is not a factor in cataract surgery.

    年龄并不是影响做白内障手术的因素。

2 N-COUNT 大瀑布 A cataract is a large waterfall. 大瀑布 [literary]
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