vt.用水坝阻止（dam的过去式与过去分词形式）...

dammed的音标：...

The stream was dammed up to form ornamental lakes.溪流用水坝拦挡起来,形成了装饰性的湖泊.They dammed the water to control flooding.他们筑坝来防洪水.They have dammed up that river.他们在那条河中筑水坝....