B1 towards the direction that is opposite to the one in which you are facing or opposite to the usual direction向后地
returning to older and less effective ways倒退地
first in one direction and then in the opposite one来来回回
More examples
When the car hit him he was thrown backwards two or three metres.
To go backwards, you must put the car into reverse gear.
She stepped backwards and fell over a chair.
He tilted his chair backwards and put his feet up on his desk.
The movement of the ship caused the mast to sway backwards and forwards.
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