- It's known as a flash flood
它叫做“瞬时洪水”
- and called that because the water may run for just a single day.
之所以这么叫是因为 这些水可能仅仅流淌一天左右
- It's an event that only happens once or twice a year at the most.
而且一年最多也只发生1~2次
- The sandy riverbed acts like a giant strip of blotting paper
布满沙子的河床像是一张巨大的吸水纸
- sucking up the water as soon as it appears.
水一边流淌一边被它吸去
- But every square metre of soil moistened by this river
这里的每一寸土壤都已被河水润湿
- will increase the chances of survival for those that live here.
为生活在这里的动物们带来了生机
来自《行星地球 第一季 第五集 Planet Earth S01E05 沙漠》第 278 行