knock down

柯林斯词典

1. PHRASAL VERB To knock down a building or part of a building means to demolish it. 拆掉 (建築物等)
Why doesn't he just knock the wall down?
他爲什麽不索性把牆拆掉？
2. PHRASAL VERB If someone is knocked down or is knocked over by a vehicle or its driver, they are hit by a car and fall to the ground, and are often injured or killed. (開車) 撞倒[英國英語]
He died after being knocked down by a car. 他被一輛汽車撞倒後死了。
A drunk driver knocked down and killed two girls. 一個喝醉了酒的司機撞死了兩個女孩子。
A car knocked him over. 一輛汽車把他撞倒了。
3. PHRASAL VERB To knock down a price or amount means to decrease it. 降低 (價格)[美國英語]
The market might abandon the stock, and knock down its price. 商場可能會清理庫存，降低價格。