When you summarize, you condense an extended idea or argument into a sentence or more in your own words.

总结的时候，用自己的话把拓展了的观念或论据简缩成一句或几句话。

《柯林斯英汉双解大词典》

Judge Lady Clark of Calton jailed Ludlow for four years and imposed an 18-month extended sentence upon his release.

BBC: Four years for man who threatened two women while on bail

On the eve of his release from a barracks in Asuncion, a special military tribunal set up by Mr Wasmosy extended his sentence indefinitely.

ECONOMIST: Paraguay

After each offense, prison officials extended his sentence in isolation.

NEWYORKER: Hellhole