2N-COUNT [usually singular]中风;脑卒中 If someone has a stroke, a blood vessel in their brain bursts or becomes blocked, which may kill them or make them unable to move one side of their body. 中风;脑卒中
He had a minor stroke in 1987, which left him partly paralysed.
3N-COUNT [usually plural](铅笔、刷子的)一笔,一挥,笔画 The strokes of a pen or brush are the movements or marks that you make with it when you are writing or painting. (铅笔、刷子的)一笔,一挥,笔画
Fill in gaps by using short, upward strokes of the pencil.
4N-COUNT [usually plural]划水动作;划桨动作;(游泳或划船的)一次划水 When you are swimming or rowing, your strokes are the repeated movements that you make with your arms or the oars. 划水动作;划桨动作;(游泳或划船的)一次划水
I turned and swam a few strokes further out to sea.
我转身向海里又游了几下。
The boatmen accompany the stroke of their oars with the sound of their voices.