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1·He died after being knocked down by a car.

他被一辆汽车撞倒后死了。《柯林斯英汉双解大词典》

2·Norris twice knocked down his opponent in the early rounds of the fight.

诺里斯在拳击赛的头几个回合中，曾两度击倒他的对手。《柯林斯英汉双解大词典》

3·A drunk driver knocked down and killed two girls.

一个喝醉了酒的司机撞死了两个女孩子。《柯林斯英汉双解大词典》

4·He was knocked down by a bus.

他被公共汽车撞倒了。《牛津词典》

5·These old houses are going to be knocked down.

这些旧房子要拆了。《牛津词典》

6·He knocked down the price from $80 to $50.

他把价格从80元降到了50元。《牛津词典》

7·She was knocked down by a bus.

她被一辆公共汽车撞倒在地。《牛津词典》

8·Winds have knocked down power lines, cutting electricity to thousands of people.

风刮断了电线，中断了数千人的电力供应。《柯林斯英汉双解大词典》

9·A drunk driver knocked down two students.

一名醉酒的司机撞倒了两名学生。

10·The cyclist was knocked down by a truck.

骑车的人让一辆卡车撞倒了。