solitary confinement

He spent eleven years in solitary confinement.

他度过了11年的监禁。

The arch-criminal was kept solitary confinement.

那名首犯监禁。

On this occasion, the postilion reached its address, although the person to whom it was addressed was, at that moment, in solitary confinement.

这一次，那邮车达到了目的地，尽管件当时正在“隔离”期间。