Hái / méi / què / dìng / mù / biāo / jiù / kāi / shǐ / tǎo / lùn / xì / jié / wèi / miǎn / běn / mò / diān / dǎo

还没确定目标就开始讨论细节，未免本末颠倒。

Starting to discuss details before setting a goal is putting the cart before the horse.