impact
n. 冲击, 冲突, 影响, 效果 vt. 挤入, 撞击, 压紧, 对...发生影响
发音
词形变化
教材释义与例句
影响；效果；碰撞；冲击力
影响；撞击；冲突；压紧（on，upon，with）
挤入，压紧；撞击；对…产生影响
释义与例句
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1.
The striking of one body against another; collision.
可数 不可数 -
2.
The force or energy of a collision of two objects.
可数 不可数The hatchet cut the wood on impact.
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3.
A forced impinging.
可数 不可数 医学His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg.
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4.
A significant or strong influence or effect.
可数 比喻 不可数His friend's opinion had an impact on his decision.
Our choice of concrete will have a tremendous impact on the building's mechanical performance.
December 7, 1941, November 22, 1963, and September 11, 2001 had an impact on many throughout the world.
The French revolution, the Russian revolution, and the Iranian revolution had an impact on many throughout the world.
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1.
To collide or strike, the act of impinging.
及物When the hammer impacts the nail, it bends.
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2.
To compress; to compact; to press into something or pack together.
及物The footprints of birds do not impact the soil in the way those of dinosaurs do.
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3.
To significantly or strongly influence or affect; to have an impact on.
比喻 及物I can make the changes, but it will impact the schedule.
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4.
To stamp or impress onto something.
罕用 及物Ideas impacted on the mind.
词汇关系
相关短语
词源
Attested since the 17th century, from Latin impāctus.
来源：wiktionary