超市进行了大规模价格回调，许多商品都降价了。

The supermarket implemented major price ___rollbacks on many items.

由于新政策引发了争议，政府决定回滚到之前的版本。

The government decided to perform a ___roll-back to the previous version due to the controversy caused by the new policy.

卡车司机在狭窄的仓库里完成了倒车操作。

The truck driver completed the ___roll-back in the tight warehouse space.