舒展 (shū zhǎn): to roll out; to extend; to smooth out; to unfold

She rubbed her sore arms, then slowly stretched them out, feeling much more relaxed.

After sitting at his desk for a long time, he stood up and stretched, loosening his stiff back.

In yoga class, the teacher had us stretch our bodies first before attempting more difficult poses.

Seeing the child finally relax his furrowed brow, the mother smiled with relief.

The lotus leaves in this painting stretch out naturally, as if swaying gently in a breeze.