- What seems like air,
这看上去像是空气 - isn't.
不对 - It's just another kind of water.
它只是另一种水 - This is a halocline -
这里是盐跃层 - a meeting of fresh and salt water.
淡水与咸水的交汇处 - Fresh water from the jungle flows over the heavier salt water from the sea.
咸水来自海洋 比重较重 来自丛林的淡水在其上方流动 - The saltwater layer is extremely low in oxygen
咸水层的含氧量很低