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。
The knot was fastened in such a way that it was impossible to undo.
那个结系死了，没法解开。
Oh, do let me help to undo it!
哦，让我帮你解开它吧！
I managed secretly to undo a corner of the parcel.
我设法偷偷地打开包裹的一角。
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。
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。
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。
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。
Undo a deposit with a withdrawal.
可以用取款来撤销存款。
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。
Gmail lets you quickly undo your last action.
Gmail可让您迅速取消上一次的操作。
Gotcha 3: The Undo option has some exceptions.
问题3：undo选项有一些例外情况。
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。
Realize that a letter can't undo the damage.
l意识到单单一封信无法弥补伤害。
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。
If for some reason you want to immediately undo the upgrade.
如果因为一些原因您要立即取消升级。
If for some reason you need to immediately undo the upgrade.
如果出于一些原因您需要立即取消升级。
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。
One cigarette does not undo all the progress you have made.
吸一根烟不会抹杀以往所取得的进步。
You can redo the most recent undo operation by pressing Ctrl + y.
您可以通过按住Ctrl + Y键重做大多数最近的取消操作。
You can undo the last change, by calling the UndoLastChange method.
通过调用UndoLastChange方法，可以撤销上一次的更新。
So maybe during the day, I can rush around and undo the damage.
这样白天我就可以挽回些损失。
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