When the food eventually runs out, the whole army will die... 当食物消耗殆尽时 蝗虫大军就会灭亡

129. Between them, they will devour 40,000 tonnes of food in a day.
     每天能吃掉四万吨食物
130. Nothing can strip a land of its vegetation with such speed
     蝗灾吞噬植被的速度和彻底性
131. and thoroughness as a plague of locusts.
     没有任何事物能与之比肩
132. When the food eventually runs out, the whole army will die...
     当食物消耗殆尽时 蝗虫大军就会灭亡
133. but not before it's devastated the land.
     但不等它们寂灭下来 世界早已一片狼藉
134. With no plants to bind them,
     没有植被固定土壤
135. thin soils soon turn to dust and blow away.
     稀薄的土层很快就会变成沙尘 被风吹走

来自《行星地球 第二季 第四集 Planet Earth S02E04 沙漠》第 132 行