tenuity

the tenuity of one's understanding

理解力很差

the tenuity of the upper atmosphere.

大气层的上部气稀薄。

Coexistence of the rational and elegant prose has brought on interflowing of the two style and therefore facilitated prosperity and tenuity in this field.

理性散与通俗散并存,形成了雅俗合流的格局,共同促成了当代散的繁荣与苍白。