纪录片《我们的地球》 第317期 极端沙漠(8)

（单词翻译）

The locusts¹ now transform into winged adults,

蝗虫正在变态为有翅的成虫，

and with conditions as good as this, they do so three times faster than normal.

由于生长环境良好，它们发育的速度达到平时的三倍。

Now they are at their most voracious²...

现在到了食欲最旺盛的时候...

and with wings, they can take to the skies.

有了翅膀，它们就能飞行。

Once airborne, the locusts can travel over 60 miles a day in their search for new feeding grounds.

一旦上天，蝗虫每天可以飞行九十六公里去寻找新的觅食区。

A super swarm³ of this scale may only appear once in a decade.

如此大规模的超级蝗群也许十年才出现一次。

This one extends over 200 square miles and contains several billion individuals.

这个蝗群遍布518平方公里，共有数十亿只蝗虫。

Between them, they will devour⁴ 40,000 tonnes of food in a day.

每天能吃掉四万吨食物。

Nothing can strip a land of its vegetation with such speed and thoroughness as a plague of locusts.

蝗灾吞噬植被的速度和彻底性没有任何事物能与之比肩。

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...

but not before it's devastated⁵ the land.

但不等它们寂灭下来，世界早已一片狼藉。