another is the labrador current cold water coming down from the arctic
问题描述：
another is the labrador current cold water coming down from the arctic
coming down from是一个词组么?
为什么要用分词短语担当同位语的定语?
答
coming down from是动名词词组,在这里做后置定语,修饰water
意思是：另一条是从北极流下来的拉布拉多寒流冷水