Urushiol quickly penetrates the skin, often leaving red lines that show where you brushed against the plant.

They can quickly penetrate quite deep into materials that contain water, for example most food.

This rubble is not stable and the cold will penetrate quickly, lowering their chances of survival.

We both knew our only hope was to make for the relative shelter of the woods, where the sun's light wouldn't penetrate quite as quickly.

A sudden gust from the north brought a chill that quickly penetrated wet clothes.

The force quickly penetrated the center of the city without encountering serious opposition.

If these men were not able to quickly and inconspicuously penetrate the dome, we would have to find some other way.

Though-true-it was also an incognito no enemy would quickly penetrate.

He pressed his hot wet tongue to the opening and penetrated quickly, pressing its length all the way into her.

I wear no stockings, and the cold quickly penetrates my thin shoes.