话语的主干部分通常是一个单独的小句，小句之后可以不断地增加细节内容，也可以不断地增加并列的小句。话语主干部分的延伸可以由and, but, or, because, so等连接词引出，也可以用并行句来延伸。
I hope you have a little fun at Christmastime. And I hope you come back full of energy and bright-eyed and everything, because it's going to be a very interesting year next year.
我希望你在圣诞节期间开心点。我希望你回来时，精神充沛，眼光迥然有神，样样都好，因为，明年将是一个非常有趣的年份。