中文摘要：

本文所说的“句法成分长度问题”，是指某句法结构对结构内部某个句法成分的长度具有敏感性。文章罗列了现代汉语中受句法成分长度制约的六种语言现象。文章试图作些解释，但同时明确指出，关于句法成分的长度对句法结构的制约作用，其原因何在？如何解释？目前还未理出明确的思路，还需深入研究。希望本文能成为引玉之砖。

英文摘要：

The issue of ＇length of syntactic constituent＇ means that the overall syntactic structure is restricted by the length of certain syntactic constituent in the structure. The arti- cle lists six length-restricted language phenomena, makes attempts to account for them, and while acknowledging that the reasons for the restriction on the syntactic structure by the syntactic constituent length remain unclear, invites more in-depth analyses.