tán pàn / zhuō shàng / xū xū shí shí / shuāng fāng / dōu / zài / shì tàn / duì fāng / de / dǐ xiàn谈判桌上虚虚实实,双方都在试探对方的底线。At the negotiating table, truth and bluffs are mixed; both sides are probing each other’s bottom line.