《中学教学语法系统提要(试用)》在“3.7固定短语”里提出了“结构对称的习惯语(你一言我一语,你一句我一句,高一脚低一脚,深一脚浅一脚,东一鎯头西一棒槌)”的问题,这是一种经常使用、普遍存在而又不大引起人们重视的语言现象。笔者试图作一粗略探讨,希能引起同行们的重视,求得真知灼见,以丰富和充实语言教学内容并进一步推动语言科学研究。 “High school grammar system teaching summary (Trial)” in the “3.7 fixed phrase” put forward the “symmetrical structure of the idioms (you say a word I, you a sentence I, high kick low, deep kick shallow one Feet, east of a head west of a stick) ”problem, which is a language phenomenon that is often used, ubiquitous and not cause much attention. I try to make a rough discussion, I hope to arouse the attention of colleagues, seek insights to enrich and enrich the content of language teaching and further promote language science research.