Usually a dry riverbed would be a place of safety.

干涸的河床通常是安全的庇護(hù)所

It maps the riverbed and sets its course accordingly.

它繪制河床 并據(jù)此來規(guī)劃路線

Riverbeds that have been dry for years suddenly fill.

多年干涸的河床突然間漲滿了水

We're gonna follow this dry riverbed straight into town.

我們要順著這條干涸的河床直接沖進(jìn)城內(nèi)

They use their trunks to dig holes in the sand of the riverbed.

它們用鼻子在河床上的沙子中挖洞

The dipper's clearly looking a lot before he dives, scanning the riverbed for food.

顯然這只河烏鳥在潛下來之前 已經(jīng)沿著河床覓食很久了

Gathering in a dried out riverbed, they use knowledge passed down from generation to generation.

聚集在干涸的河床上 它們運(yùn)用代代相傳的智慧

After three years of feeding and growing on the riverbed, the males appear first.

經(jīng)過三年在河底的進(jìn)食和發(fā)育 雄蟲最先出現(xiàn)

Charlie reckons the best way to follow what goes on underwater is to recreate the riverbed.

查理認(rèn)為 探尋水下世界最好的辦法 就是重塑河床

'cause you're not used to the altitude, but we're gonna cross the riverbed right about here that's fairly exposed.

因?yàn)槟氵€不習(xí)慣高海拔 但我們必須跨過河床 這個(gè)地方完全暴露在外