water transportation by rafting的用法和样例：
例句
- Rafting was a luxury after crossing previous rivers on foot, running the risk of hypothermia or even drowning.
筏运曾经是一种奢华的方式比起过河时用脚的时代，筏运的风险在降低体温或是溺死。 - Icerafting deposits are formed by the melting of sedimentladen ice blocks, which is transported into sea or lake when spring is changing into summer.
冰筏沉积是负载沉积物的冰块在春夏之交筏运到海洋或湖泊中，冰块融化沉积物坠落所形成的。
