掂斤播两diān jīn bō liǎng

计较轻重。亦用以比喻品评优劣或过分计较琐事。

例尽着你说短论长，一任待掂斤播两。——元·王实甫《西厢记》

英argue about little details; engage in petty calculations; be calculating in small matters;

亦作“掂斤抹两”