bevel
/ˈbevl; `bɛvl/ n
1 sloping edge or surface, eg at the side of a picture frame or a sheet of plate glass 斜边或斜面（如镜框或玻璃板的边缘）. =>illus见插图.
2 (in carpentry and stonework) tool for making such edges （木匠和石匠用的）斜角规. bevel, v (-ll-; US -l-) [Tn]
give a sloping edge to (sth) 把（某物）切成或磨成斜边或斜角
bevelled edges 弄成斜面的边.