1.
(ii) The offeror lawfully revokes the offer;
(二)要约人依法撤销要约；
2.
The notice of revocation shall reach the offeree before it has dispatched a notice of acceptance.
撤销要约的通知应当在受要约人发出承诺通知之前到达受要约人。
3.
An offer may not be revoked:
有下列情形之一的，要约不得撤销：
4.
An offeror may withdraw his offer at any time before the offeree has accepted it.
一个要约人可以在受要约人承诺以前的任何时候，撤销他的要约。
5.
(i) if it expressly indicates, whether by stating a fixed time for acceptance or otherwise, that it is irrevocable;
（一）要约人确定了承诺期限或者以其他形式明示要约不可撤销；
6.
(ii) if the offeree has reason to regard the offer as irrevocable, and has undertaken preparation for performance.
（二）受要约人有理由认为要约是不可撤销的，并已经为履行合同作了准备工作。
7.
Single and multiple Undo
单次撤销和多次撤销
8.
Blind and explanatory Undo
隐蔽撤销和解释性撤销
9.
Although users need Undo, it doesn’t directly support any particular goal that underlies their tasks.
虽然用户需要撤销，但撤销并不支持其任务的特定目标。
10.
Territory-wide Joint Committee to Request for Abolition of Housing Subsidy Policy
全港要求撤销富户政策联委会
11.
In compliance with your wishes we have withdrawn our suggestion.
遵照你的要求我们已将建议撤销.
12.
We are surprised that you have to ask for cancellation of the credit.
贵方要求撤销信用证，我们甚感惊异。
13.
The items of lot 1990 and 1997 were withdrawn.
第1990、1997号拍品应委托人要求撤销。
14.
The Necessity of Establishing the Suit of the Third Party Applying for Reversing the Judgements in China;
论我国设立第三人撤销之诉的必要性
15.
Option Analysis Of Cancelable Leases Decision
可撤销租赁合约估价:基于二叉树模型的分析
16.
The notice of withdrawal shall reach the offeree before or at the same time as the offer.
撤回要约的通知应当在要约到达受要约人之前或者与要约同时到达受要约人。
17.
advise whether they should be irrevocable,
我们会向客户建议是否需要不可撤销信用证，
18.
"If necessary, propose to the said authorities that the goods be disqualified from inspection exemption."
必要时可建议国家商检部门撤销其免验资格。