A prison sentence should match the severity of the crime.

刑期长短要和罪行轻重一致。

《牛津词典》

There were extenuating circumstances and the defendant did not receive a prison sentence.

因有可减轻罪行的情节被告未被判刑。

《牛津词典》

He served less than a year of a five-year prison sentence, but was permanently exiled from the sport.

他5年刑期只服了1年不到，但被永远逐出了体育界。

《柯林斯英汉双解大词典》

Thaksin Shinawatra went into exile in Cambodia to avoid a prison sentence for corruption.

VOA: special.2010.05.22

One received a prison sentence of six years.

VOA: special.2010.01.07

He was serving a 15 year prison sentence after being convicted of passing classified information to the United States.

VOA: standard.2010.07.09

Prosecutors asked for a prison sentence of seven years and three months, plus financial penalties.

FORBES: Magazine Article

The maximum prison sentence for adultery would rise from nine months to five years.

WSJ: Indonesia Weighs Curbs on Sex, Magic

However, the RDAP approach to lowering ones prison sentence is not without its pitfalls.

FORBES: A Booming Part of Economy - Prison Consulting