knock sb down

strike sb to the ground or the floor 将某人击倒或撞倒在地上: She was knocked down by a bus. 她被公共汽车撞倒了. * He knocked his opponent down three times in the first round. 在第一回合中他把对手击倒了三次. knock sth down demolish sth 拆除某物: These old houses are going to be knocked down. 这些旧房子将予拆除. knock sth down (to sb) (infml 口) (at an auction sale) sell sth (to a bidder) （拍卖时）卖出某物（给出价人）: The painting was knocked down (to an American dealer) for 5000. 那幅画拍卖时以5000英镑售出（给一个美国商人）. knock sth/sb down (force sb to) reduce (a price or charge) （迫使某人）减（价或费用）: I managed to knock his price/him down (from 500 to 450). 我设法压了他的价（从500英镑减到450英镑）.

knife, knife-edge, knight, knight errant (pl knights errant), knighthood, knightly, knit, knitter, knitting, knitting-machine, knitting-needle, knitwear, knob, knobbly, knock, knock (sth) on, knock down, knock off, knock off (sth), knock out, knock sb out, knock sb/sth over, knock sth back, knock sth in; knock sth into sth, knock sth together, knock up, knock up against, knock-down, knock-kneed, knock-on, knock-out, knock-up, knockabout, knocker, knoll, knot, knot-hole, knotty, know, know about,