In summer, the rivers no longer flow. 夏天的时候 河水将会枯竭
Marshes are sponges that regulate the flow of water. 沼泽是调节水流的海绵
that they flow almost like water. 让它们可以如流水般行动自如
rivers flow through lush vegetation. 河流穿过茂密的植被
sustained by the nutrients and detritus in the icy currents that flow around the peak. 得益于洋流持续不断地携带养分从这里流过
High in the branches above, the baobab's nectar is starting to flow. 高处的波巴布树已经开始分泌花蜜了
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
all of which eventually flow out to the sea. 它们最终都流向大海