1
cost overrun
常用复合名词，指成本超出预算。
The project encountered a significant cost overrun.
该项目遇到了严重的成本超支。
超出量；超额量
overruns — plural of overrun
先理解核心含义，再看它在真实句子里的用法。
超出量；超额量
An instance of exceeding a limit, or the amount by which something exceeds it.
The project encountered a significant cost overrun.
该项目遇到了严重的成本超支。
超出；超限
An instance of overrunning.
超出量
The amount by which something overruns.
跑道末端安全区
An area of terrain beyond the end of a runway that is kept flat and unobstructed to allow an aircraft that runs off the end of the runway to stop safely.
搅入冷冻甜点以使其松软的空气
Air that is whipped into a frozen dessert to make it easier to serve and eat.
The cost overrun on the bridge project led to financial issues.
桥梁项目的成本超支导致了财务问题。
The garden suffered an overrun of weeds after the heavy rain.
大雨过后，花园里杂草泛滥。
The project schedule experienced an overrun of two months.
项目进度超期了两个月。
常用复合名词，指成本超出预算。
The project encountered a significant cost overrun.
该项目遇到了严重的成本超支。
常与表示蔓延或超出的事物搭配。
There was an overrun of invasive species in the forest.
森林中出现了入侵物种的泛滥。
表示在某方面的超出限度。
The overrun on the schedule caused delays.
进度超限导致了延误。
Not this
The budget overrunned the estimate.
Use this
The budget overran the estimate.
overrun 的过去式是不规则变化 overran，而非规则加 -ed。
Not this
The costs were overrun.
Use this
The costs overran.
表示'超支'时，overrun 常作不及物动词，不应使用被动语态。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
成本超支
The cost overrun for the stadium was millions of dollars.
体育场的成本超支高达数百万美元。
进度超期
The schedule overrun means the new school will open late.
进度超期意味着新学校将推迟开学。
冲出跑道事件
The runway overrun caused no injuries.
那次冲出跑道事件没有造成人员伤亡。
高充气量（冰淇淋等冷冻甜品中打入的空气量）
This ice cream has a high overrun, so it feels light and airy.
这款冰淇淋的充气量很高，所以口感轻盈松软。
成本超支
The project was delayed due to significant cost overruns.
由于严重的成本超支，该项目被推迟了。
预算超支
The government faced criticism for the budget overrun on the new highway.
政府因新高速公路的预算超支而受到批评。
进度超期
The construction company was fined for schedule overruns on the bridge.
建筑公司因桥梁工程进度超期而被罚款。
Use overruns naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
overrun = over（超过）+ run（跑）: 跑过头就是超出量；飞机跑过头需要跑道端安全区；冰淇淋跑过头注入空气，体积膨胀。
语域：neutral 常见场景：project status reports、budget audits、construction contracts 该名词义项（超出量、超额）通常用于项目、预算等正式或半正式场合，如 cost overrun（成本超支）、schedule overrun（进度超限），多出现在报告、审计或媒体新闻中；日常口语较少直接用 overrun，更常说 go over budget。
这些单词都与 overrun 的尾音节 /rʌn/ 押韵（重读元音 /ʌ/ + 辅音 /n/）。注意 one 的拼写与发音不一致；overrun 虽然以 run 结尾，但整体读音为 /ˌəʊvəˈrʌn/，请勿与 overdue（/ˌəʊvəˈdjuː/）等词混淆。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.