impact

劍橋詞典

the force or action of one object hitting another
沖擊（力）；撞擊（力）
The impact of the crash reduced the car to a third of its original length . 撞車時(shí)的沖擊力使車身變形，僅剩原長(zhǎng)的三分之一。
The bullet explodes on impact (= when it hits another object ). 子彈擊中物體時(shí)爆炸。
a powerful effect that something, especially something new, has on a situation or person
（尤指新事物的）巨大影響，強(qiáng)大作用
The anti-smoking campaign had had/made quite an impact on young people . 禁煙運(yùn)動(dòng)對(duì)年輕人影響很大。
The new proposals were intended to soften the impact of the reformed tax system . 新的提議旨在減輕改革后的稅制所造成的影響。

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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