toothed scoop shovel excavator

例句：

1. 1. The toothed scoop is used to clean the surface of the floor.
   这种有牙齿的铲子用来清理地板的表面。
2. 2. The excavator is essential for digging trenches in construction projects.
   挖掘机在建筑项目中用于挖掘沟渠。
3. 3. The scraper shovel is used to remove debris from the ground.
   刮刀铲用来从地面上清除碎片。