- 留情 [liú qíng]
- show mercy [forgiveness]:
show the enemy no mercy; give the enemy no quarter; 对敌人毫不留情
have mercy on those who are in your power 手下留情
The Prince would work his will on the people without mercy.
He used to bully his secretary without mercy, but even a worm will turn and one day she walked out and left her job without even saying goodbye.
The enemy broke through the front line, but were firmly repulsed from the higher ground by cavalry.