A trio of researchers compared donors with a gaggle of crop-growers, spraying water hither and thither, leaving some plants parched, others deluged.

• 三名研究人员将捐助国比作一群作物栽培者，洒水时这边洒一点、边洒一点，一些植物因没浇到而干燥不堪，而其它的则因过量而积水成涝。