knock down

• 动词短语，指使某人或某物倒下、击倒或撞倒；也可指降低价格。

A phrasal verb meaning to cause something or someone to fall to the ground, or to reduce the price of something.

不可数 · 及物 · 短语动词，可分

1. Cause to fallinformal

   To cause someone or something to fall to the ground by hitting them.

   击倒

   • The cyclist was knocked down by a car.
   • He accidentally knocked down the stack of books.
   • The strong wind knocked down several trees.

   同义词bowl overbring downcut downdeckdownfellfloorknock overmow downprostratetopple

   反义词erectliftraiseuphold

2. Reduce priceinformal

   To persuade someone to lower the price of something.

   砍价

   • I managed to knock down the price by $50.
   • She tried to knock down the seller's asking price.
   • They knocked down the cost of the repairs.

   同义词bargain downbeat downcutdiscountlowermark downreduceslash

3. Demolishformal

   To destroy or dismantle a building or structure.

   拆除

   • The old factory was knocked down to make way for a park.
   • They plan to knock down the wall to expand the room.
   • The city council approved the plan to knock down the abandoned building.

   同义词bulldozedemolishdestroylevelpull downrazetear down

   反义词buildconstructerectraise

基本动词knock