名词
中文翻译：打桩机
同义词：
['plough', 'plow', 'shovel', 'digger例句：1. The farmer used a knapper to level the land for planting.（农民使用打桩机平整土地以便种植。）2. The engineer designed a new knapper to improve the efficiency of the construction site.（工程师设计了一种新型打桩机以提高建筑工地的效率。）']
例句：
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1. The farmer used a knapper to level the land for planting.
农民使用打桩机平整土地以便种植。
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2. The engineer designed a new knapper to improve the efficiency of the construction site.
工程师设计了一种新型打桩机以提高建筑工地的效率。
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3.The knapper was used to drive the heavy equipment into the ground.
打桩机被用来将重型设备打入地面。