They absorb it in the wet season... 雨季时吸水

116. These wetlands are crucial to all life on earth.
     这些湿地对地球上的生命至关重要
117. They represent six percent of the planet.
     它们占据地球表面♥积♥的6％
118. Marshes are sponges that regulate the flow of water.
     沼泽是调节水流的海绵
119. They absorb it in the wet season...
     雨季时吸水
120. And release it in the dry season.
     旱季时排水
121. The water runs off the mountain peaks,
     水从山峰上奔流直下
122. Carrying with it the seeds of the regions it flows through.
     携带着流过区域的种子

来自《家园 第二部分 Home Part2》第 119 行