undo，英语单词，主要用作动词、名词。作动词时译为“解开，松开；消除……影响或结果，使恢复原状”，作名词时译为“撤销还原”等。
单词释义
英 [ʌnˈduː] 美 [ʌnˈduː]
v. 解开，松开；消除……影响或结果，使恢复原状；撤销（先前的计算机指令）；破坏，毁掉
n. （计算机）撤销还原
[
复数 undos
第三人称单数 undoes
现在分词 undoing
过去式 undid
过去分词 undone ]
单词用法
柯林斯英汉双解大词典
undo /ʌnˈduː/ CET4 TEM4 ( undoing, undid, undone, undoes )
1.V-T If you undo something that is closed, tied, or held together, or if you undo the thing holding it, you loosen or remove the thing holding it. 打开; 解开; 松开
2.V-T To undo something that has been done means to reverse its effect. 使无效
3.→ see also undoing
短语搭配
Undo Check Out 还原注销 ; 取消锁定 ; 复原签出 ; 撤销签出
Undo Move 取消行动 ; 取消移动
Undo or Redo
取消 ; 重做 ; 勾销 ; 该命令会撤销或重做对所选物体的最后一次改动
Undo Tablespace 回滚表空间 ; 表空间 ; 撤销表空间 ; 撤销表空间
UNDO SEGMENT 回滚段 ; 撤销段 ; 创建表空间和
Undo Send 撤销发送 ; 取消发送 ; 撤销发送邮件
Undo Information 恢复信息 ; 撤销信息 ; 清除回滚段中的恢复信息
UNDO REDO 数据库备份与恢复技术 ; 撤销 ; 操作上的 ; 放弃和重做
Undo Scene Operation 撤销场景操作 ; 撤销场景
双语例句
1、He tried to undo the knot by picking at it with his fingers. 他用手指不停地扯，想把绳结解开。
2、The knot was fastened in such a way that it was impossible to undo. 那个结系死了，没法解开。
3、Oh, do let me help to undo it! 哦，让我帮你解开它吧！
Then if we want to undo some bad restoration attempts, we can determine what kind of process we can use to remove them to dissolve the paint and uncover the original.
然后，如果我们想要撤销一些糟糕的修复尝试，我们可以决定使用什么样的方法来移除它们，以溶解油漆并展现其原始面貌。
I managed secretly to undo a corner of the parcel.
我设法偷偷地打开包裹的一角。
《柯林斯英汉双解大词典》
It's not too late to try and undo some of the damage.
想办法补救部分损失还为时不晚。
《牛津词典》
If you want to repair the wheels you just undo the four nuts.
如果你要修理轮子，只拧下那4个螺母就行了。
《柯林斯英汉双解大词典》
She knew it would be difficult to undo the damage that had been done.
她知道难以挽回已造成的损失。
《柯林斯英汉双解大词典》
A heavy-handed approach from the police could undo that good impression.
警察的专制手段能使那个好印象化为乌有。
《柯林斯英汉双解大词典》
It may turn out that vitamin E plays a role in prevention but cannot undo serious damage.
结果可能是，维生素E在预防中会起作用，但不能消除严重的损害。
This might sound small, but to undo the effects of such a decrease a candidate would need 30 more GMAT points than would otherwise have been necessary.
这数字听起来可能很小，但要想消除这种下降的影响，考生需要比正常情况下多获得30分的 GMAT 分数。
Perhaps with the tools of this new technological revolution, we will be able to undo some of the damage done to the natural world by the last one-industrialisation.
也许，有了这次新技术革命的工具，我们将能够消除上次工业化对大自然造成的一些损害。
That suggests that catch-up sleep may undo some but not all of the damage that sleep deprivation causes, which is encouraging, given how many adults don't get the hours they need each night.
这表明补觉可以弥补部分但不是全部睡眠缺乏造成的损害，考虑到有很多成年人每晚都没有得到他们所需的睡眠时间，这令人鼓舞。
Undo a deposit with a withdrawal.
可以用取款来撤销存款。
Undo has some exceptions.
撤销有一些例外情况。
You can only undo a single transaction.
只能撤消一个事务。
The legacy is proving difficult to undo.
这种遗留问题太难撤销了。
Unlimited undo and redo for edit operations
对于编辑操作的无限制撤销和还原
Reverse or undo any changes no longer needed
反转或撤销任何不再需要的变更。
Of course, we cannot undo history with therapy.
当然，我们不能通过心理治疗来撤销历史。
After reviewing the undo commands, click Finish.
在检查撤消命令之后，单击Finish。
You can undo your changes that are causing conflicts.
您可以取消引起冲突的变更。
So you'd have to take that scroll out and undo it.
所以你要把它拿出来并展开。
Once you make a choice, it can be difficult to undo.
一旦做出选择，就难以改变。
This will undo all changes on the current selected record.
这将撤销当前所选记录上的所有更改。
After that, she requested permission to undo my pants.
之后，她又征求为我松裤子的许可。
At the heart of this magic is the ability to undo and redo.
这个魔法的中心是撤销和重做的能力。
You might also forget to undo the wiring before you deploy.
在部署之前，您还可能会忘记撤消连接。
大师告诫学生，“要消除一切先入之见”。
You'd also capture any change to undo any schema changes.
还要捕获任何变化，从而能够取消模式变化。