Cataract
01
瀑布, 大瀑布
a large waterfall where water rushes forcefully over a height
例子
Boats had to navigate tricky channels and portage around sections obstructed by formidable cataracts.
船只不得不航行在棘手的航道中，并在被 formidable 瀑布 阻挡的河段周围进行搬运。
02
白内障, 晶状体混浊
a medical condition characterized by the progressive clouding or opacity of the lens of the eye, resulting in blurred vision
例子
Cataract surgery is usually performed to remove the cloudy lens and replace it with an artificial lens implant.
白内障手术通常是为了去除混浊的晶状体并用人工晶状体植入物替换它。
