Definition
To remain completely still; to not make any movement.
一動不動
When the teacher walked into the classroom, all the students did not move a muscle.
當老師走進教室時，所有學生都一動不動。
He tried not to make any sound and didn't move a muscle while lying in bed.
他試著不發出任何聲音，躺在床上時一動不動。
During the surgery, the patient had to not move a muscle.
在手術過程中，病人必須一動不動。