bargaining chip

1. N-COUNT In negotiations with other people, a bargaining chip is something that you are prepared to give up in order to obtain what you want. (谈判中)可以放弃的条件

Rubio suggests that oil be used as a bargaining chip in any trade talks. 鲁比奥建议所有贸易谈判都可放弃石油这一筹码。