1. They were no longer using mules and horses to plough their fields. 他们那时已不再用骡子和马来犁地了。
2. You can start again on mathematics, until is it is time to learn to plough. 你可以重新开始学习数学，直到该学犁地的时候。
3. The water buffalo squelched up and down the paddy fields, pulling the plough. 水牛拉着犁，在稻田里咕唧咕唧地走着。
4. Many are self-steering, use GPS to cross a field, and can even "talk" to their implements—a plough or sprayer, for example. 很多都是自动驾驶的，使用 GPS 穿越田地，甚至可以和他们的工具“交谈”——比如，与犁或喷雾器。
5. Caterpillar, a maker of vehicles that dig, pull or plough, is shifting some of its excavator production from abroad to Texas. 生产挖掘、牵引或犁地车辆的 Caterpillar 公司正将部分挖掘机从国外转移到德克萨斯州。
