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to back up
[phrase form: back]
01
支持, 支援
to support someone or something
Transitive: to back up sb/sth
Example
The loyal fans always back up their favorite sports team.
The coach consistently backs up his players, fostering team spirit.
02
倒退, 后退
to move or drive something backward
Transitive
Example
She backed up the car into the parking space.
He backed up the truck to unload the cargo.
03
证实, 支持
to confirm that something is true or valid
Transitive: to back up a claim or statement
Example
She backed up her argument with compelling evidence.
Let's back these claims up with concrete examples.
04
排队, 堵塞
to wait in a long line of cars, unable to move because the road is crowded
Intransitive
Example
The city center was a mess, with cars backing up for miles because of the parade.
市中心一片混乱，因游行汽车排队堵塞了好几英里。
Heavy rain led to streets flooding, and traffic started backing up in various areas.
大雨导致街道洪水涌现，各地交通开始排队，堵塞。
05
备份, 复制备份
to make a copy of computer digital data
Transitive: to back up digital data
Example
I 'll back up my important documents before the software update.
The IT team needs to back the entire database up regularly.
Example
The vehicle cautiously backed up to reposition itself in the tight parking spot.
In the narrow alley, the delivery truck had to back up to find an alternative route.
07
撤回, 撤退
to reverse or undo one's actions or decisions
Intransitive
Example
I had to back up and apologize after realizing my mistake.
我不得不撤回并道歉，意识到我的错误。
They chose to back up and remove the controversial statement from the press release.
他们选择撤回并从新闻稿中删除有争议的声明。
08
回顾, 重新考虑
to reconsider or rethink one's previous thoughts or decisions
Intransitive
Example
After hearing new information, I decided to back up and rethink my choice.
听到新的信息后，我决定回顾，重新考虑我的选择。
He had to back up and reconsider his opinion after the discussion.
他在讨论后不得不回顾，重新考虑他的观点。
