Dialogue is the basic form of the text of colloquial language and elliptical sentences with the language situation left out is mainly seen in dialogue.
要完整地理解无主句,必须弄清楚祈使句、省略句等易于混淆的概念。
To comprehend this sentence pattern perfectly, one should have a clear demarkation among the easily confusing conceptions of imperative sentence, elliptic sentence and so on.