How to use "grubby" in a sentence

In the hard light, the enormous architectural confections were not always appealing; at times, in spite of the billions of dollars of value that it represented, the Strip looked grubby.

After so much talk about death, she needed a glimpse of movement, action, life; and although the Strip sometimes was grubby in the flat glare of the desert sun, the boulevard was always, day or night, bustling and filled with life.