A bulldozer is a large vehicle with a broad metal blade at the front, which is used for knocking down buildings or moving large amounts of earth.
英汉词典释义
n.
推土机
The bulldozer is out of repair.这台推土机损坏得无法修理了。The bulldozer leveled the mount of earth.推土机把土山推平了。A bulldozer was employed for excavating the foundations of the building.推土机用来给楼房挖地基。
英英词典释义
Noun
1. large powerful tractor; a large blade in front flattens areas of ground