各執一詞

each sticks to his own version (idiom); a dialogue of the deaf

each / every

to execute (a plan) / to grasp

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

word / statement / speech / lyrics / CL:組|组[zu3],個|个[ge4] / a form of lyric poetry, flourishing in the Song dynasty 宋朝|宋朝[Song4 chao2] / CL:首[shou3]