canceler

例句：

1. 1. The company decided to cancel the event due to weather conditions.
   由于天气原因，公司决定取消活动。
2. 2.The writer had to cancel his appearance at the conference because of illness.
   这位作家因病不得不取消在会议上的演讲。
3. 3. The cancellation of the flight was unexpected and caused a lot of inconvenience for the passengers.
   航班的取消给乘客带来了很多不便。