改动的英文：
alter; change; modify; turn

参考例句：

Remember that if the waist of the bodice is altered the skirt must be altered also to match.
记住如果大身的腰围改动,那么为了相配,裙子腰围也要做相应的改动。

Changes were made to the manuscript per the author's instructions.
根据作者的提示，手稿做了改动。

The bookkeeper deceived his employer by manipulating the accounts of the business.
会计用改动账目的手法欺骗雇主。

I move that we adopt the agenda as it stands
我提议,不作改动通过这个议程。

He made extensive alterations on two of the pages.
他对其中的两页进行了大幅度改动。

A digital signature verifies that no changes have been made to the file.
数字签名核实文件没有经过改动。

I haven't altered or left out a thing.
我一点也没改动，一点也没删除。

In their borrowing there was much adaptation
他们借用的过程中也有不少改动。

She recast her lecture as a radio talk.
她把讲义改动后用作之声的讲话.

Who's been tinkering (around) with the wiring?
谁总瞎改动电线线路？

alter是什么意思：
v. 改变，更改；改做（衣服）

He stepped upon the alter.
他走上圣坛。

Their attitude to me altered subtly.
他们对我的态度发生了微妙的变化。

Prices may be subject to alteration.
价格可能会有所变动。

change是什么意思：
n. 变化；交换，交替；零钱
v. 改变；交换，替换；兑换；更换

change a bed;change the baby.
换床单；给婴儿换尿布

We propose 'a change [making a change / to make a change / that a change should be made].
我们建议应做一点改变。

The change of quantity can causes the change of quality.
量变可以引发质变。

modify是什么意思：
v. 修改，更改；修饰；减轻，减缓

A modifier that has little meaning except to intensify the meaning it modifies.
修饰语除了加强修饰词的意思之外没有实际意义。

modified centralization scheme
改进的集中管理体制

The machine has been extensively modified.
这机器已被大规模地改造过。