dam2 verb (dammed, damming) [transitiveT] (also dam up)1. TECto stop the water in a river or stream from flowing by building a special wall across it 築壩攔〔水〕,在…中築堤
2 to stop something from being expressed or continuing 阻止,抑制Once she allowed her anger to show, it could not be dammed up again. 她一旦發起脾氣來就不可收拾。