cancellation

取消；删除英释中释na decision that an event that was planned will not happen

1 echo cancellation,回波消除

2 cancellation of registration,取消登记

1 Rail passengers are fed up with cancellations and delays..火车乘客厌烦取消班次和误点的问题。

2 Bad weather led to the cancellation of the game..天气不好导致比赛取消了。