Military planners and diplomats worry that the North's increasing distress over food supplies could provoke it to invade the South.军方策划人员和外交官担心北方日益严峻的粮食供应困难会使其入侵南方。We need to improve the supply of food to the area affected by the floods.我们得增加受水灾影响的地区的粮食供应。