She wished there was more light, but it would be a while until the sun penetrated the foliage all around her.

Even on a sunny day, the sun can't penetrate the grime in the air.

What he looked at was solid, a slowly moving gray mass through which the sun could not penetrate.

A table had been laid for three in the corner where the sun penetrated.

The canyon is so deep and narrow in places that the sun barely penetrates it.

But even if they did the sun would not penetrate here.

The sun must penetrate additional hundreds of miles of atmosphere.

After all, I want to be sure the sun can't penetrate by day.

The sun had not yet penetrated into the shadow, if it ever did.

A hot sun soon penetrated to the surface of the island.