dam

• 横跨河流或溪流建造的挡水建筑物，用于蓄水、拦洪或发电；也指起阻挡作用的事物。

A noun referring to a barrier built across a river or stream to hold back water, often used for irrigation, flood control, or generating hydroelectric power.

1. Water barrierA2formal

   A barrier built across a river or stream to hold back water, often used for irrigation, flood control, or generating electricity.

   水坝

   • The Hoover Dam is a famous landmark in the United States.
   • Engineers inspected the dam for structural integrity.
   • The dam created a large reservoir for the nearby town.

   同义词barragebarrierdikeembankmentleveewallweir

2. Animal motherB2formal

   The female parent of an animal, especially a horse, sheep, or other livestock.

   母畜

   • The dam gave birth to a healthy foal.
   • The farmer recorded the lineage of the dam and sire.
   • The dam's milk is essential for the lamb's growth.

   同义词mother

   反义词sire

• 动词，指修筑堤坝或障碍物以阻挡水流，也泛指阻拦、抑制或控制某事物。

A verb used to indicate the act of building a barrier to block the flow of water, or to restrain or hold back something.

1. Block water flowB1formal

   To build a barrier across a river or stream to stop or control the flow of water.

   筑坝拦截

   • The engineers dammed the river to create a reservoir.
   • They plan to dam the stream for irrigation purposes.
   • Beavers naturally dam small waterways with sticks and mud.

   同义词barblockcheckdikehold backimpoundobstructrestrainstemstop

   反义词drainfreeopenreleaseunblock

2. Hold back or restrainB2formal

   To stop or control the flow of something, such as emotions or resources.

   抑制

   • She tried to dam her tears during the sad movie.
   • The government attempted to dam the flow of illegal goods.
   • He could not dam his anger any longer.

   同义词blockcheckcontaincontrolcurbhold backrestrainstemsuppress

   反义词freeletreleaseunleash

短语动词变体dam up