double-deck plough

例句：

1. 1. The farmer used a double-deck plow to prepare the field for planting.
   这位农民用双层犁准备田地以便播种。
2. 2. The double-deck plow is an essential tool for tilling the soil.
   双层犁是翻土的重要工具。
3. 3. The double-deck plow has become obsolete in modern agriculture.
   在现代农业中，双层犁已经过时了。