There were some constraints, however. Poverty may undermine the viability of the project as lack of income, resulting from poor sales of such export crops as cotton and coffee, may undermine regular payment of teachers' salaries.
不过，有些限制因素，贫穷可能妨碍项目进行，因为棉花和咖啡等出口作物销售不好，人们缺少收入，这都会妨碍教师薪水的定期支付。