Some blue showed below the knees of his uniform trousers.

The knees of my trousers were soaked through but I didn't care.

He felt the water soak the knees of his trousers, and that was good.

The knees of his trousers were always wet with soil.

Adjusting the knee of his trousers, Gonzalez sat down again.

He hitched up the knee of his trousers and put one leg across the other.

The knees of the Doctor's trousers were scorched off in an instant.

It didn't help him remember why the knees of his trousers had been stained with mud the last time he'd come home from the woods.

Small, even stitches closed a tear in one knee of his trousers.

He pointed at the knees of his trousers and held his arms up to show the elbows.