打起来

start fighting

→ 打
phrase Rare #20,184
start fighting 起来 indicates that the fighting begins or breaks out.
CH: 他们一见面就打起来了。
EN: They started fighting as soon as they saw each other.

我要是回去的话你不怕我跟我妹又打起来?

Aren’t you afraid that my sister and I will get into another fight if I go back?

— 热辣滚烫 (2024)

他们会打起来的

They’re going to fight.

— 莫斯科不相信眼泪 (1980)

外头打起来了

A fight has broken out outside.

— 黄飞鸿之一:壮志凌云 (1991)

打起来了

A fight has broken out.

— 黄飞鸿之一:壮志凌云 (1991)