巴基斯坦棉花种植者对棉花生产技术有普遍而充分的理解，但由于棉花曲叶病毒和粉状病毒，产量有限。

Cotton growers in Pakistan generally have a sound understanding of cotton production technology, but yields are limited due to the cotton leaf curl virus and mealy bug.

youdao

Jefferson Davis is, in fact, a classic example of the cotton boom planter.

实际上,杰斐逊·戴维斯,是棉花种植者暴富的典型例子

耶鲁公开课 - 美国内战与重建课程节选