- The swarm travels with the wind -
沙漠蝗御风而行
- it's the most energy-saving way of flying.
这是最省力的飞行方式
- Following the flow of wind means that they're always heading toward areas of low pressure,
随着风向迁徙意味着 它们总是飞向低压地区
- places where wind meets rain and vegetation starts to grow.
那里正是风雨交加的地方 植物定能生长
- As they fly,
在飞行过程中
- swarms join up with other swarms
一团蝗虫云也会和其它蝗虫云汇合
- to form gigantic plagues several billions strong and as much as 40 miles wide.
从而形成巨大的灾害 无数“瘟神”组成的大军绵延长达40英里
来自《行星地球 第一季 第五集 Planet Earth S01E05 沙漠》第 321 行