the third degree
US /ðə θɜrd dɪˈɡri/
UK /ðə θɜrd dɪˈɡri/

1.
嚴厲盤問, 嚴刑拷打
intense questioning or interrogation, often in a harsh or prolonged manner
:
•
My parents gave me the third degree when I came home late.
我回家晚了,父母對我進行了嚴厲的盤問。
•
The police gave the suspect the third degree for hours.
警方對嫌疑人進行了數小時的嚴厲審問。