excavation of earth

• 挖土

excavation of earth的用法和样例：

例句

1. His palms were excoriated by the hard labor of shoveling.
   他的手掌因干挖土的活儿而磨破了皮。
2. In our daily life we know the auger as a large, dynamic iron tool which moves clay and digs into the earth.
   在我们的日常生活中，旋转给我们的印象只是一种用来挖土的工具。