Play ball and agree to the peace plan or condemn your people to poverty and war.要么进行合作, 同意和平计划；要么让你们的人民陷入贫困和战争。

We'll look after you if you play ball with us on this case.如果你在这个案子上与我们合作, 我们会关照你的。

The association has threatened to withdraw its support if the banks refuse to play ball.该协会威胁说, 如果各家银行拒绝合作, 他们将不再提供支持。