动词短语
中文翻译：倒退跳跃
同义词：
['backward leap', "backward sprint例句：1. He tried to back up the steps but couldn't make it.（他试图倒退上楼梯，但做不到。）"]
例句：
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1. He tried to back up the steps but couldn't make it.
他试图倒退上楼梯，但做不到。
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2.The dog backed up when it saw the cat.
当狗看到猫时，它后退了。
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3. The team backed up their strategy for a better chance of winning.
团队为了更好的获胜机会，调整了他们的策略。