Gengbuyongshuo（更不用说） is rather idiomtized（i.e let alone） than a phrase meaning in modem Chinese. The semantic function of obviousness and apparentness and pragmatic principle of economy of Gengbuyongshuo（更不用说） determines the omission of its subsequent components. And its long-term frequent use makes ＂Geng（更）＋buyong（不用）＋shuo（说）＂ gradually solidified into a whole from a cross-layer structure. Backtrack reasoning is compulsory to interpret the clause of Gengbuyongshuo（更不用说）. The negative and positive semantic casc...
