Users initiate an undo by shaking the device, which displays an alert that allows users to undo what they just typed, redo previously undone typing, or cancel the undo.

用户摇晃设备启动撤销，接着设备将显示警告，允许用户撤销他们刚刚输入的内容，重做之前撤销的内容，或取消撤销。

youdao

Click Cancel to return to the Manage alert Settings page without deleting any alerts or alert results.

单击“取消”可返回“管理通知设置”页面，不会删除任何通知和通知结果。

youdao

GMDSS operator (s) able to explain correct procedures in cancel a false distress alert?

误发遇险警报后，GMDSS操作员是否能解释如何纠正？

youdao

The James Paget Hospital, now on amber alert, said although under pressure it has not needed to cancel any operations.

BBC: Norfolk hospitals under 'severe pressure'

An Ashcroft aide acknowledged the terrorist alert issued Friday was one of several factors in the decision to cancel the trip.

CNN: Sources: al Qaeda linked to bank threat