- and appear to do this just for fun.
而它们这么做似乎只是因为好玩 - Yet these swimming skills acquired during play
但是 这些在玩耍中学会的游泳本领 - will certainly be useful later in life in these flooded mangrove forests.
将来会成为在红树林中 非常有用的生活技能 - In cooler climes, mud, laid down in estuaries,
在较冷的地区 沉积在入海口的泥沙 - is colonised by salt marsh grasses
被大片盐沼水草覆盖 - and form one of the most productive habitats on the planet.
成为地球上一处 最肥沃的野生动物栖息地 - 400,000 greater snow geese flock to the estuaries along the Atlantic coast of the United States
40万只大西洋雪雁成群飞往 美国大西洋海岸的河口地带
In cooler climes, mud, laid down in estuaries, 在较冷的地区 沉积在入海口的泥沙
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