废除奴隶制度

例句：

1. 1. The government has decided to abolish the death penalty for all crimes.
   政府决定废除所有罪行的死刑。
2. 2.The law was abolished after the revolution.
   在革命后，这项法律被废除了。
3. 3. The company's policy of abolishing overtime work was criticized by labor unions.
   该公司的政策是废除加班工作，这一做法受到了工会的批评。