In medieval times, a lance couched under the rider's arm, unifying the force of rider and weapon, would throw its wielder backwards off the horse at impact.

在中世纪，一把长矛被放在骑手的臂膀下，以统一骑手和武器的力量，一旦受到冲击，持兵器者就会向后摔下马去。

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Nuclear bombs are humankind's most powerful weapon, but their destructive impact would unlikely alter the spinning of the Earth on its axis.

核弹是人类最强大的武器，但是它们的破坏性影响还不大可能改变地球沿着其轴线的自转。

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The act or an instance of striking, as with the hand, a weapon, or a tool; a blow or an impact.

用手，武器或工具敲打的行为或例子；一次打击或冲击。

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