salinity of sea ice

例句：

1. 1.The ocean has a high salinity level due to the presence of saltwater.
   由于存在盐水，海洋的盐度水平很高。
2. 2.The fisherman used to live in a village near the coast with a high salinity level.
   这位渔民过去住在海岸附近一个盐度高的村庄里。
3. 3. The salinity levels in the ocean have been increasing due to climate change.
   由于气候变化，海洋中的盐度水平一直在增加。