Arbitrary and differential are two correlative qualities.

任意性和差异性是两个相关的属性。

耶鲁公开课 - 文学理论导论课程节选

and knowing that the sound image correlative to the concept tree is "arbor," right, arbor I can think of something like that , something in some way resembling that.

树这个词所对应的声音形象是,凉亭，对，凉亭,也就是像我画的树这样，至少是像这样的东西。

耶鲁公开课 - 文学理论导论课程节选