But they are increasing in both size and number: dead zones have now been reported in more than 400 areas.
不过,目前他们的面积和出现次数都在上升:目前发现的死水区域已经有超过400个。
Red circles on this map show the location and size of many of our planet’s dead zones.
地图中的红圈代表着我们生存的这颗星球上的死亡区域的位置和面积。
Red circles on this map show the location and size of many of our planet's dead zones.
地图中的红圈代表着我们生存的这颗星球上的死亡区域的位置和面积。
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