Related topics: Water, Oceanography, Geography
ˌhigh ˈwater mark noun [singular] 1. SCTTWthe mark that shows the highest level that the sea or a river reaches 高水位线
2 SUCCESSFULthe time when someone or something is most successful 〔成功的〕顶峰,顶点,全盛时期high water mark of the high water mark of Herrera’s presidency 埃雷拉总统任期内最成功的时期