cancel的过去式双写不双写都行:
cancelled，canceled
You cannot cancel the order unilaterally .
你们不能单方面取消订货。
I'll cancel it without reconsideration .
我无需再作任何考虑就可解除它。
With one stroke, he had cancelled all his accounts .
他把所有的帐目一笔勾销。
What does she mean by canceling her performance ?
她取消自己的演出是什么意思？
A connecting flight was canceled .
一架衔接的班机取消了。
Our travel plan has been cancelled .
我们的旅行计划吹了。
It can not be altered or cancelled .
它不能更改或撤消。
The waves are out of phase and cancelone another .
波为不同相的，彼此抵消而减弱。
The pros and cons cancel out .
正反两种意见互相抵消。
The magnetic fields of the valence electrons do not cancel .
价电子的磁性没有抵消。
Is it your pleasure that i cancel the arrangements ?
您的意思是否要我取消这些安排？
Have you canceled that acceptance ?
你把请柬退了吗？
Thanks to the bad weather , the match had been cancelled .
多亏这个坏天气，比赛取消了。
The meeting had to be cancelled .
会议只得取消。
They threatened to cancel the whole project at a stroke .
他们扬言要一下子取消整个项目。
cancel的过去式双写l再加ed。
cancel的过去式是cancelled
现在分词形式cancelling
过去分词cancelled
第三人称单数cancels
cancel主要用作动词，作动词来使用时它的意思是：取消; 撤销; 终止; 废除(具有法律效力的协议); 盖销，注销(票或邮票)。
