The thought grabbed at Mary, and she straightened her spine.

He straightened his spine, as if seeking a posture of command.

She straightened her spine, trying very hard to be brisk.

She straightened her spine and managed a small step backward.

It had taken the lemur a million years to straighten his spine.

Henry made a production of closing the book and straightening its spine.

She sighed, then straightened her spine against the chair's soft back.

She straightened her spine, then held out her hand to him.

She straightened her spine and did a few arm circles.

I groaned and tried to straighten my spine, now turned rubber.