Long before the use of machinery and fertilizers, industrious and creative farmers had already used different kinds of methods to increase crop yields.
早在使用机械和化肥之前，勤劳和富有创造性的中国农民就已经采用各种各样的方法来增加农作物产量。
2
She had her long hair cut into a boyish crop.
她让人把她的长发剪成了像男孩子的短发。
《柯林斯英汉双解大词典》
3
A bad bout of cold weather, a long spell of frosts could ruin a farmer's entire crop.