如题所述
ruler ['ruːlə]
1. 尺;统治者;[测] 划线板,划线的人
He thwacked the desk with a ruler.
他用尺子重敲桌子。
Is this ruler graduated in centimeters?
这把尺是厘米刻度的吗?
She lined the white paper with a pen and a ruler.
她用钢笔和直尺在白纸上画线。