（形容被判入狱）
used to describe a prison sentence (= time in prison) that does not have a fixed length
She was sentenced to be detained at Her Majesty's pleasure. 她被判监禁。
Children convicted of murder receive a sentence of detention at Her Majesty's pleasure.
He has been detained at Her Majesty's pleasure in the past.
He was sentenced to be detained at Her Majesty's pleasure for the brutal killing of a haridresser.
They face being detained at Her Majesty's pleasure.
informal（形容在狱中）
used to mean "in prison"
He has had several spells at Her Majesty's pleasure. 他曾入狱好几次。
He's currently languishing at Her Majesty's pleasure.
If she gets caught, she can expect another spell at Her Majesty's pleasure.
He spent a couple of years at Her Majesty's pleasure following a burglary spree.
He's already done time at Her Majesty's pleasure.
See also: Majesty