層次
?arrangement (or sequence) of ideas
?tier;level
這篇文章～不清。This article lacks unity and cohesion./講話有～organize one’s ideas in a logical sequence in one’s speech /提高兩國(guó)經(jīng)貿(mào)合作的～和水平upgrade (or lift)the level and expand the scope of bilateral economic and trade cooperation/部門～繁多administration with multi-tiered departments/多～at different levels; many-tiered; multi-tiered;multi-level/深～問題deep-rooted (or deep--seated,deep-set)problems/～繁多overlapping