惯用法(usage)现象存在于自然语言的各个层次中,而在不同的层次中又有不同的表现形式,对所有层次上的惯用法现象作统一的讨论,为这样一篇短文所无法胜任,本文只集中讨论惯用法现象在句子这一层次的特殊形式——常用句的惯用性(或叫做“现成性”、“习用性”、“习语性”),但笔者相信这种讨论完全可以推广到整个惯用法现象,因此下面在不是必须 The phenomenon of usage exists in all levels of natural language, and there are different forms of expression in different levels. The phenomena of idioms at all levels are discussed in a unified way, and such an essay can not be qualified. This article focuses only on the idioms of idioms at the level of sentences - idiomatic conventions (or “ready-made”, “customary”, “idiomatic”), but I believe this discussion is entirely Popularize the whole idiom, so the following is not a must