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Do you mean "contract". Well, when muscles contract they get shorter and fatter. When they relax they get longer and thinner.
The thinner , longer bone of the forearm.
No more than human hair gets longer if the person gets fatter. Whisker growth is not determined by how fat the cat may be.
The thinner , longer bone of the forearm.
relaxes
a rifle looks like a pistol but longer and fatter
the great famine ended in Ireland in 1850 but it took a bet longer for Ireland to recover.
muscles become longer, but thinner
The crops had failed and there was not enough food to feed the people, so famine devastated our town
A change can happen when a mechanical advantage increases as it becomes longer and thinner.
make the pencils six times longer of 2 times fatter.
Try to do by your self.