jì / rán / hé / zuò / wú / fǎ / jì / xù / shuāng / fāng / zhǐ / hǎo / yì / dāo / liǎng / duàn

既然合作无法继续，双方只好一刀两断。

Since the cooperation could not continue, both sides had no choice but to sever ties completely.