ask sth. of sb.困难

Further arrangements — and there may be many — between the NHS and DeepMind will be carefully scrutinised to ensure that all necessary permissions have been asked of patients and all unnecessary data has been cleaned.

NHS与DeepMind之间今后的安排——可能会有很多——将受到仔细审查，以确保已征得患者所有必要的许可，并清除所有不必要的数据。

The hardest task that television asks of anyone is to turn the power off after he has turned it on.

电视对任何人提出的最难的任务，就是打开之后再把它关掉。