back up
第三人称
backs up
现在进行时
backing up
过去式
backed up
过去完成时
backed up
1
支持, 支援
to support someone or something
及物动词
- The loyal fans always back up their favorite sports team.
忠实的粉丝总是支持他们最喜欢的运动队。
- The coach consistently backs up his players, fostering team spirit.
教练一贯支持他的球员，培养团队精神。
- I'll back up your proposal during the meeting.
我会在会议期间支持你的提议。
- The teacher always backs her students up in their creative endeavors.
老师总是在学生的创造性努力中支持他们。
- He backed his colleague up in the dispute with the client.
他在与客户的争执中支持了他的同事。
2
倒车, 后退
to move or drive something backward
及物动词
- She backed up the car into the parking space.
她把车倒进了停车位。
- He backed up the truck to unload the cargo.
他倒车卡车以卸货。
- The driver backed up the vehicle to avoid hitting the curb.
司机倒车以避免撞上路缘。
- I had to back up the file to ensure the data was saved properly.
我不得不后退文件以确保数据被正确保存。
- She backed up her decision when new information came to light.
当新信息出现时，她撤回了她的决定。
3
备份, 制作备份
to make a copy of computer digital data
及物动词
- I'll back up my important documents before the software update.
- The IT team needs to back the entire database up regularly.
- Make it a habit to regularly back up your important folders.
- The software prompts users to back up their information regularly.
- Remember to back up your important files regularly.
4
支持, 确认
to confirm that something is true or valid
及物动词
- She backed up her argument with compelling evidence.
她用令人信服的证据支持了她的论点。
- Let's back these claims up with concrete examples.
让我们用具体的例子来支持这些说法。
- The witness backed up the testimony with clear recollections.
证人用清晰的回忆证实了证词。
- They backed up the proposal with a detailed project plan.
他们用详细的项目计划支持了这个提议。
- Historical records can back up the accuracy of the ancient manuscript.
历史记录可以证实古代手稿的准确性。
5
排队, 堵车
to wait in a long line of cars, unable to move because the road is crowded
- The city center was a mess, with cars backing up for miles because of the parade.
由于游行，市中心一片混乱，汽车排起了长队，绵延数英里。
- Heavy rain led to streets flooding, and traffic started backing up in various areas.
大雨导致街道积水，交通开始在各个地区堵塞。
- During rush hour, the city's streets tend to back up, causing delays for commuters.
在高峰时段，城市的街道往往会堵塞，导致通勤者延误。
- The accident on the freeway had traffic backing up in all lanes.
高速公路上的事故导致所有车道的交通堵塞。
- The festival attracted large crowds, and the roads quickly started to back up.
这个节日吸引了大量人群，道路很快就堵塞了。
反义词：
6
倒车, 后退
(of a vehicle) to move backward
- The vehicle cautiously backed up to reposition itself in the tight parking spot.
车辆小心翼翼地倒车，以便在狭窄的停车位上重新定位自己。
- In the narrow alley, the delivery truck had to back up to find an alternative route.
在狭窄的小巷里，送货卡车不得不倒车以寻找替代路线。
- The car backed up to park in the driveway.
汽车倒车停在了车道上。
- The bus backed up into the alley to turn around.
公共汽车倒车进入小巷以掉头。
7
后退, 撤销
to reverse or undo one's actions or decisions
- I had to back up and apologize after realizing my mistake.
意识到自己的错误后，我不得不后退并道歉。
- 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。
- He wished he could back up and avoid making that decision.
他希望自己能回头并避免做出那个决定。
- She realized her error and decided to back up and redo the task.
她意识到自己的错误，决定退回并重做任务。
- He tried to back up and take back what he said during the meeting.
他试图撤回在会议期间所说的话。
8
重新考虑, 重新评估
to reconsider or rethink one's previous thoughts or decisions
- After hearing new information, I decided to back up and rethink my choice.
听到新信息后，我决定退一步，重新考虑我的选择。
- He had to back up and reconsider his opinion after the discussion.
讨论后他不得不退一步重新考虑他的观点。
- She backed up after realizing she had missed an important detail.
她在意识到自己遗漏了一个重要细节后重新考虑了。
- I decided to back up and look at the situation from a different angle.
我决定退一步，从不同的角度看待这个情况。
- They backed up and reconsidered their strategy after the first attempt failed.
在第一次尝试失败后，他们退后并重新考虑了他们的策略。