1
make an alteration to sth
She made a small alteration to the dress.
她对裙子做了一处小改动。
变更；改动
先理解核心含义，再看它在真实句子里的用法。
变更；改动
the act of making something different, such as changing the size of a garment
She made a small alteration to the dress.
她对裙子做了一处小改动。
改变的行为
The act of altering or making different.
改变的状态；变更
The state of being altered; a change made in the form or nature of a thing; a changed condition.
The seamstress made a small alteration to the dress so it would fit perfectly.
女裁缝对连衣裙做了一点小改动，让它更合身。
Any alteration to the contract must be approved by both parties.
对合同的任何修改都必须得到双方同意。
The architect suggested several alterations to improve the flow of the house.
建筑师提出了几处改动，以改善房屋的布局。
She made a small alteration to the dress.
她对裙子做了一处小改动。
There was a significant alteration in the plan.
计划发生了重大变更。
The alteration of the original text was necessary.
对原文的改动是必要的。
Not this
I need to alteration the schedule.
Use this
I need to alter the schedule.
“alteration”是名词，不能直接作谓语。应用动词“alter”表示“改动”的动作。
Not this
There are several alteration to the plan.
Use this
There are several alterations to the plan.
“alteration”是可数名词，表示多个改动时应用复数形式“alterations”。
Not this
We made an alteration on the design.
Use this
We made an alteration to the design.
“alteration”后常用介词“to”表示“对……的改动”，而不是“on”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
进行改换
We need to make several alterations to the design.
我们需要对设计进行几处改动。
小改动
The tailor made a minor alteration to the dress.
裁缝对裙子做了个小改动。
大改动
The building underwent a major alteration last year.
该建筑去年经历了一次大改动。
结构变更
Any structural alteration requires planning permission.
任何结构变更都需要规划许可。
对……的改动
They proposed an alteration to the contract terms.
他们提议对合同条款进行改动。
经历改动
The software underwent several alterations before release.
该软件在发布前经历了几次改动。
可能有变动
The schedule is subject to alteration without notice.
时间表可能会变更，恕不另行通知。
对……进行修改
We need to make some alterations to the design.
我们需要对设计做一些修改。
未经改动
The original text is reproduced without alteration.
原文未加改动地再现。
Use alteration naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象改动（alter）一件衣服，加名词后缀-atian，就是“变更”alteration。
修改调整
often followed by 'to'
Dictionary facts from ECDICT, WIKTIONARY.