impact

剑桥词典

the force or action of one object hitting another
冲击（力）；撞击（力）
The impact of the crash reduced the car to a third of its original length . 撞车时的冲击力使车身变形，仅剩原长的三分之一。
The bullet explodes on impact (= when it hits another object ). 子弹击中物体时爆炸。
a powerful effect that something, especially something new, has on a situation or person
（尤指新事物的）巨大影响，强大作用
The anti-smoking campaign had had/made quite an impact on young people . 禁烟运动对年轻人影响很大。
The new proposals were intended to soften the impact of the reformed tax system . 新的提议旨在减轻改革后的税制所造成的影响。

例句

• The increase in the number of young people leaving to work in the cities has had a dramatic impact on the demography of the villages .
• This decision will have a disastrous impact on foreign policy .
• The report concluded that business pressure on the government had muffled the impact of the legislation .
• The tax on fuel will not have a serious impact on the better-off.
• The book discusses the impact of Christian thinking on western society .
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