back up
back up — 片語動詞
- back upbase form
- backs up3rd person singular
- backing up-ing form
- backed uppast simple
1. to move backwards, or to make a vehicle move in reverse
後退；倒車
車輛或人往後方移動
to move backwards, or to make a vehicle move in reverse
Sofie backed the taxi up slowly so the ambulance could pass on the narrow street.
Sofie 慢慢地將計程車倒退，讓救護車能通過狹窄的街道。
transitive + particle: backed the taxi up
The lorry driver checked his mirrors carefully before backing up to the loading bay.
貨車司機仔細檢查後視鏡後，才倒車靠近卸貨區。
intransitive: backing up
Kian asked his passenger to watch the rear while he backed the van up into the garage.
Kian 請乘客幫忙看後方，同時將廂型車倒入車庫。
Manuela reversed out of the driveway, then stopped and backed up to shut the gate.
Manuela 從車道開出來後，又停下來倒車去關上大門。
The car in front of us suddenly backed up without giving any warning signal.
我們前方那輛車在沒有任何警示下突然倒車。
- advance
formal opposite; move ahead
文法句型
back up
back something up
back up something
常見錯誤
2. to give help, encouragement, or practical support to a person, group, or plan, e
支持；力挺
以行動或言語支持他人
to give help, encouragement, or practical support to a person, group, or plan, especially by showing public agreement or readiness to assist
Madison's teammates backed her up when she complained about the unsafe training conditions.
Madison 抱怨訓練環境不安全時，隊友們都支持她。
transitive: back + person + up
Kabir asked his older brother to back him up during the difficult conversation with their landlord.
Kabir 請他哥哥在跟房東那場棘手的對話中幫忙支持他。
The local council backed up the residents' plan to turn the empty lot into a community garden.
地方議會支持居民將空地改造成社區花園的計劃。
Hana promised to back up her younger sister at the school meeting with the headteacher.
Hana 答應在與校長會面時支持妹妹。
The two security guards always backed each other up during the night shift.
兩名警衛在夜班時總是互相支援。
文法句型
back somebody up
back something up
用法筆記
Common in both informal conversation and professional settings. The object can be a person, a group, an idea, or a plan.
常見錯誤
3. to show that a statement, story, or claim is true by providing evidence or by re
證實；佐證
提供證據證明某事為真
to show that a statement, story, or claim is true by providing evidence or by repeating the same account
The bank records backed up Mert's explanation of where the money had come from.
銀行記錄證實了 Mert 對金錢來源的說明。
transitive: evidence backs up a claim
Kemi's account of the accident was backed up by three independent witnesses who saw the whole thing.
Kemi 對事故的描述得到三位目睹全程的獨立證人證實。
passive construction: was backed up by
Alessia found old receipts that backed up her tax claim from two years earlier.
Alessia 找到一些舊收據，佐證了她兩年前的報稅申報。
The scientist could not back up his theory with any data from controlled experiments.
那位科學家無法用任何對照實驗的數據來佐證他的理論。
Eli told the headteacher what happened, and his best friend backed him up when questioned.
Eli 告訴校長事發經過，而他的好友在被問話時也為他作證。
- substantiate
more formal; preferred in academic and legal writing
- corroborate
formal; used especially when a witness's account is supported by other evidence
- verify
implies checking the truth against a standard or reliable source
文法句型
back something up
back up something
back something up with something
用法筆記
Frequently used in formal, academic, and legal contexts. The passive form ('be backed up by evidence/data/witnesses') is especially common in journalism and research writing.
常見錯誤
4. to make a copy of computer data or digital files so that the information can be
備份
複製數位檔案以防遺失
to make a copy of computer data or digital files so that the information can be recovered if the original is lost, damaged, or deleted
Mayumi backs up her entire photography collection to a cloud service every month.
Mayumi 每個月都將整批攝影作品備份到雲端服務。
regular action: backs up + object + to + destination
The school's IT administrator backs up all student records at the end of each term.
學校的 IT 管理員在每學期末備份所有學生記錄。
Beatrix lost six months of work because she had never backed up her research files.
Beatrix 因為從未備份研究檔案，丟失了六個月的工作成果。
Before you install the new operating system, make sure you back everything up.
安裝新作業系統之前，務必將所有資料備份好。
The company backs up customer data on three separate servers in different locations.
該公司將客戶資料備份在三個不同地點的獨立伺服器上。
文法句型
back up something
back something up
用法筆記
The separable form ('back your files up') and the non-separable form ('back up your files') are both correct. The direct object should be files or data, not the device itself.
常見錯誤
5. if traffic or a line of vehicles backs up, the vehicles form a long, slow-moving
回堵；塞車
車輛過多導致道路壅塞
if traffic or a line of vehicles backs up, the vehicles form a long, slow-moving queue because the road ahead is blocked or there are too many of them
Traffic backed up for nearly five kilometres after the lorry spilled its load on the motorway.
貨車在高速公路上散落貨物後，車流回堵了將近五公里。
intransitive: traffic backs up
Cars began to back up along the high street as the Saturday market got underway.
隨著週六市集開始，主要大街上的車子開始回堵。
The accident on the bridge backed traffic up all the way into the neighbouring town.
橋上的事故使車流一路回堵到鄰近的鎮上。
Vehicles backed up at the border checkpoint while officers searched each lorry.
海關人員逐一搜查貨車時，邊境檢查站的車輛塞成一團。
- clear
as in 'the traffic cleared after an hour'
文法句型
traffic backs up
something backs up
back something up
用法筆記
The intransitive form (traffic/cars back up) is much more common. The transitive form (an accident backs traffic up) appears mainly in news reports about road incidents.