/noʊ/
v. 知道；认识到，懂得；熟悉，了解；确信，确定；把……看作是；将……称为；认出，辨认出；能区分；精通，掌握；经历，体验
第三人称单数 knows
现在分词 knowing
过去式 knew [njuː] [nuː]
过去分词 known
ADJ little-known 鲜为人知的
Summer will be over before you know it. 表示事情过得非常快。
Before you know it, you’ll be finished with school.很快的，你就会毕业了。
我跟他不熟。 I don’t know him well.
注：相反的说法“I know him very well.”，年轻人说这句话时，有时暗示彼此已经有性关系了，当然还得看当时得情况及说法的口气而定。
- Do you know how to wash your face?