move even slightly, budge
他被我钉在地上，一动也没动。
I pinned him to the ground, and he didn’t move at all.
他一动都不动
He didn't move a muscle.
— 孤胆特工 (2010)
那个孩子被吓得一动也不能动。
That child was so frightened that they couldn't move a muscle.
快点一动也不要动
Hurry up—don't move a muscle.
— 风吹麦浪 (2006)