This fabric contracts when it absorbs water.

Her curly hair is very beautiful.

This atomic bomb uses an implosion method.

The star implodes and becomes a black hole.

He was suffering from muscle contractions due to pain.

His leg suddenly underwent a spasm.

In this chemical reaction, condensation occurs.

Because the wind became strong, the captain ordered to reef the sail.

He underwent a stomach plication surgery.

I draw pictures using this tracing paper.