Another shell opened a crack; another set of eyes glistened from the dark within.

The shell of the farthest opened further, enough to show the indignant face within.

Cook for two minutes till the shells have opened.

To get at the meat they crush the shell manually or let heat from the sun force the shells to open.

The shell is both opened and closed by special muscles.

Otherwise my shell wouldn't recognvze and open to them.

The shell does not open until it becomes scorched and the fire is all over.

He would have to get away from here in a hurry, the moment the shell opened.

When the shell cracked and opened, there was always pain.

The shell opened at the edge of the roof.