我们今天用小型挖土机所干的活，若是用镐和铲子，十几个人得花四个月才能完成。
It would have taken a dozen men with picks and shovels four months to do what we've done today, with this comparatively small earth-moving machine.
推土机一种可用来挖掘或推动泥土机器，如推土机或挖土机
A machine, such as a bulldozer or backhoe, that is used for digging or pushing earth.
手铲刀身尖突并呈铲状的小型器具，在种植植物时用来挖土
A small implement with a pointed, scoop-shaped blade used for digging, as in setting plants.
