这位活动家被判处三年监禁。

The activist was sentenced to three years' ___imprisonment.

尽管年轻，他因欺诈被判处十年监禁。

Despite his young age, he received a ten-year ___imprisonment for fraud.

监禁的可能性阻止了许多人犯下严重罪行。

The possibility of ___imprisonment discourages many from committing serious offenses.