She went into this big shell, and she just wouldn't come out.

But one is about to blow a big shell loudly in his ear.

"When I was little, she'd let me put the big shells up to my ear."

There are three big spherical shells, one inside the other.

A big shell landed in the river, all too close to the barge.

A couple with beautiful daughters lived close to the location of the big shell.

Minutes before he spoke, a house less than half a mile away took a direct hit from a big shell.

He threw himself flat when a big shell came down far too close for comfort.

The big shells were coming more steadily and too close.

Then you make a slightly bigger shell and roll it out more carefully.