To make arbitrary or unsubstantiated judgments; to discuss something without true understanding, leading to divergent and inconclusive opinions.
对于这个复杂的项目方案，大家七嘴八舌，观点不一，简直是瞎子断匾，根本无法形成统一意见。
Regarding this complex project proposal, everyone was talking at once, with differing views; it was like blind men judging a plaque, making it impossible to form a unified opinion.
Next Idiom