两个坏蛋在犯罪前曾订立攻守同盟：假如被捕，他们都将保持沉默，使两人都能得到最轻的惩罚，而不致相互指证对方有罪。

Before the attempted heist, the two villains agreed that, if arrested, they would keep quiet, which would attract the lightest punishment they could get without implicating each other.

youdao

两个坏蛋在犯罪前曾订立攻守同盟：假如被捕，他们都将保持沉默，使两人都能得到最轻的惩罚，而不致相互指证对方有罪。

Before the attempted heist, the two villains agreed that, if arrested, they would keep quiet, which would attract the lightest punishment they could get without implicating each other.

youdao