判决下达后，他开始服长期徒刑。

After the verdict, he began to ___serve a lengthy prison sentence.

她在为自己的错误服刑期间反思了自己的人生。

She reflected on her life while she ___served time for her mistake.

这个臭名昭著的罪犯已经在狱中服刑超过十年了。

The notorious criminal has ___served over a decade behind bars.