skew lines

例句：

1. 1. The engineer drew a skew line to indicate the direction of the slope.
   工程师画了一条斜线来指示斜坡的方向。
2. 2. The construction crew used skew lines to mark the boundaries of the excavation area.
   施工队使用斜线标记挖掘区域的边界。
3. 3.The architect drew skew lines on the blueprint to show the layout of the building.
   建筑师在蓝图上画了斜线来展示建筑物的布局。