meaningful的形容词是什么

　　例句：

　　A sentence can be divided up into meaningful segments.

　　一个句子可以划分成有意义的各个部分。

　　She believes these talks will be the start of a constructive and meaningful dialogue

　　她认为这些谈话将是一次具有建设性的、有意义的对话的`开端。

　　She gave me a meaningful look.

　　她意味深长地看了我一眼。

　　These statistics are not very meaningful.

　　这些统计数字说明不了什么问题。

　　It had been years since they had shared any meaningful form of physical relationship.

　　他们已多年没有真正意义上的性生活了。