water loop

例句：

1. 1. The water loopin the rainforest is essential for thesurvival of many species.
   雨林中的水循环对许多物种的生存至关重要。
2. 2. The studyof water cycles helps us understand how ourplanet's climate is shaped by themovement of water.
   研究水循环有助于我们理解地球气候是如何由水的流动塑造的。
3. 3. In this region, the water loopis a crucial factor in determining the localclimate.
   在这个地区，水循环是决定当地气候的关键因素。