1. He is just trying to get even with you.
他只是想找你算账。
2. She wanted to get even for the insult.
她想要为那次侮辱进行报复。
3. They are constantly getting even with each other.
他们一直在互相报复。

A: He lied to me about the project.
A：他在项目上对我撒了谎。

B: Are you planning on getting even with him?
B：你打算找他算账吗？

1) 报复

2) 找某人算账

3) 雪恨

1. 报复，雪恨

e.g.
He's just looking for a way to get even.
他只是在寻找一个报复的机会。

idiom

1. To do something to harm or punish someone because they have treated you badly or offended you.

Synonym: retaliate, avenge