我的方法是，从左到右，从上到下对谜板进行扫描(两遍，这是为了得到垂直方向和水平方向的词)。
Instead, I scan the board from left to right and top to bottom (twice, to get both horizontal and vertical words).
使用一块湿布按照从上到下、从左到右的环形路线顺序擦拭墙壁，注意清洁墙面的较高和较低处。
Use a damp cloth to wipe the walls in an annular route accordingly from top to bottom and from left to right, pay attention to clean higher and top parts of wall.
使用一块湿布按照从上到下、从左到右的环形路线顺序擦拭墙壁，注意清洁墙面的较高和较低处。
Use a damp cloth to wipe the walls in an annular route accordingly from top to bottom and from left to right, pay attention to clean higher and top parts of wall.
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