1. Same hatred and resentment tóng chóu dí kài

Same hatred: *** Same enemy; enemy: confrontation, resistance; resentment: anger. Refers to unanimously hating the enemy.

2. Drums and flags are equal gǔ qí xiāng dāng

Two armies are against the enemy; confrontation. It is a metaphor that both sides are equally powerful. Same as "evenly matched".

3. Enemy of ten thousand people wàn rén zhī dí

Enemy: confrontation. Refers to the ability to defeat powerful enemies with high martial arts skills. It also refers to being good at commanding an army to defend against powerful enemies. Also known as "the enemy of ten thousand people".

4. When two tigers fight, one of them will be injured. èr hǔ xiāng dòu, bì yǒu yī shāng

When two ferocious tigers fight, one of them will be injured. It is a metaphor that both opposing sides are very strong, and as a result of a fierce struggle, one side will surely suffer.

5. The two sides stand side by side. It means that two hostile parties cannot exist at the same time. A metaphor for irreconcilable contradictions.