water mass

例句：

1. 1. The ocean is home to many marine species, including the giant squid.
   海洋是许多海洋物种的家园，包括巨型乌贼。
2. 2.The water mass in the area is changing rapidly due to climate change.
   该地区的水团正在迅速变化，这是由于气候变化所致。
3. 3.The study of water masses is crucial for understanding ocean circulation and weather patterns.
   研究水团对于理解海洋循环和天气模式至关重要。