impact
- n. 影响
- n. 冲击力
- v. 影响
- v. 撞击
- Definition
- n. a powerful effect that something has
- n. the force of one thing hitting another
- v. to have a strong effect on something
- v. to hit something forcefully
- Example
- The new policy will have a big impact on schools.
- 这项新政策将对学校产生很大影响。
Synonyms & Differences 近义词辨析
Compared meaning: to have an effect on something (verb).
比较义项：对某事产生影响、发生作用（动词）。
- impact 本词
Stronger and more formal; suggests a significant, large-scale or forceful effect; common in business, policy and news contexts, often paired with 'on'.
语气更强、更正式；暗示显著的、大范围的或有力的影响；常用于商业、政策和新闻语境，常与“on”搭配。
The new tax law will impact thousands of small businesses nationwide.
这项新税法将影响全国数千家小企业。
- affect
More common and neutral; used for effects of any size, in both casual and formal speech; always directly transitive, never followed by 'on'.
更常用、语气中性；可用于任何强度的影响，口语和正式场合皆可；总是直接及物，不与“on”连用。
Loud music from next door affects my concentration at work.
隔壁的嘈杂音乐影响了我工作时的注意力。
Affect and impact both mean to have an effect, but impact is stronger and more formal, suggesting a large effect, and usually followed by 'on'. Affect is more common and neutral, used for effects of any size. Impact's noun sense is not compared here.
这两个词在“影响”这一义项上意思相近，但语气强弱和使用场合不同：impact 语气更强、更正式，强调显著或大范围的影响；affect 是更常用的中性动词，日常和正式场合都可使用。impact 还可作名词（an impact），此处只比较其动词用法。