n.水壩；堤；障礙物

v.筑壩；抑制(情感等）

The dam was not strong enough to hold back the flood water的名詞復(fù)數(shù));（湖、河等的）水域;...v.給…水喝(water的第三人稱單數(shù));在…澆水[灑水];往（酒里）摻水;..." target="_blank">waters. 水壩不太堅固，擋不住洪水。

The village was swept away when the dam burst. 村莊在水壩決堤時被沖走了。

The water deepened after the dam was built. 堤壩建成后水已加深。

The river keeps rising and the dam is threatened. 河水不斷上漲，大堤出現(xiàn)險情。

A dam is a barrier holding water back. 水壩是防堵水的障礙物。

They are going to dam up the river to set up a hydropower station. 他們準備攔江筑壩建水電站。

It's hard to dam up one's feelings. 一個人要抑制自己的感情是不容易的。

dam用作動詞作“筑壩攔水,以水壩阻攔”“擋住”解,指用障礙物堵塞,以防止水流、眼淚等繼續(xù)流出,其后可接名詞或代詞作賓語。引申可表示“抑制,克制”,這時常與up連用。