backup

/ˈbækʌp/ (bre, ipa) · /ˈbækʌp/ (ame, ipa) · /ˈbak-ˌəp/ (ame, mw) · /ˈbæk.ʌp/ (bre, ipa) · /ˈbæk.ʌp/ (ame, ipa)

backup — 名詞

1. extra help, a second person or thing, or a spare arrangement kept ready when the

1.名詞B2
釋義

備援;備案

出問題時可立刻頂上的人事物或安排

extra help, a second person or thing, or a spare arrangement kept ready when the first choice cannot do the job

例句

We kept a paper map in the car as backup.

我們在車上放了一張紙本地圖當備案。

pattern: as backup

Mina asked her cousin to stay nearby for backup.

Mina 請表哥留在附近當備援。

pattern: for backup

同義詞
  • support

    broader and often more continuous, not only for emergencies or second choice.

  • reinforcement

    often means extra people sent to strengthen a group, especially police or military.

  • reserve

    stresses something kept ready in advance.

  • substitute

    focuses on replacing someone or something directly.

文法句型

as backup

for backup

call for backup

backup plan

用法筆記

Often appears in patterns like as backup, for backup, and backup plan. Distinguish from sense 3, which is only for a reserve player in sport.

常見錯誤

Call the backup plan now.
Use the backup plan now.' / 'Call for backup now.
💡plans are used, but people or help are called for.

2. a separate saved version of digital files or other computer material, kept so yo

2.名詞B2
釋義

備份檔

原始資料出問題時可用的另存副本

a separate saved version of digital files or other computer material, kept so you can recover the original after it disappears or stops working properly

例句

Please keep a backup on the cloud and one on disk.

請在雲端留一份備份檔,另外再存一份到磁碟。

keep a backup

After the crash, Ben restored the photos from a backup.

當機後,Ben 從備份檔還原了那些照片。

restore from a backup

同義詞
  • copy

    general word; it does not always suggest protection against future loss.

  • duplicate

    stresses that the second version matches the original closely.

  • archive

    often focuses on long-term storage rather than emergency recovery.

反義詞
  • original

    the first working version rather than the safety copy.

文法句型

make a backup

keep a backup

restore from a backup

backup of files

用法筆記

Usually talks about files, photos, records, systems, or whole devices, and often appears with make, keep, restore, or store. Distinguish from verb sense 2, which names the action of copying the data.

常見錯誤

I did backup of the folder last night.
I made a backup of the folder last night.
💡use make with the noun backup.

3. a team member who joins the game when a regular player cannot play

3.名詞
釋義

替補

正選不能上場時代替出賽的人

a team member who joins the game when a regular player cannot play

例句

Our backup scored twice after the captain hurt her ankle.

隊長扭傷腳踝後,我們的替補進場就攻進兩球。

backup as substitute player

The coach praised the backup for staying ready all season.

教練稱讚那名替補整季都準備得很充分。

同義詞
  • substitute

    the most general word for a player who replaces another.

  • reserve

    stresses that the player waits ready on the side.

  • alternate

    more common in some sports or formal team lists.

反義詞
  • starter

    the player who normally begins the game.

文法句型

the backup starts

backup goalkeeper

backup quarterback

backup comes on

用法筆記

Mostly used in sports and team games. Distinguish from sense 1, where backup can mean any extra help or second plan.

4. a line of traffic, people, or other moving things that grows behind a place wher

4.名詞
釋義

壅塞

因阻塞而往後累積的車流或人潮

a line of traffic, people, or other moving things that grows behind a place where movement has slowed or stopped

例句

A backup on Route 8 stretched past the bridge.

8號公路上的壅塞一路延伸過了那座橋。

traffic report pattern: a backup on

Morning rain caused a long backup outside the tunnel.

早晨的雨讓隧道外出現長長的壅塞。

cause a backup

同義詞
  • jam

    common everyday word, especially for road traffic.

  • bottleneck

    focuses on the narrow point causing the problem.

  • congestion

    more formal and often used for traffic or crowding in general.

文法句型

a backup on the highway

a backup at security

cause a backup

traffic backup

用法筆記

Most common in North American traffic reports and news writing. It often names a line of cars or people behind a blocked point, unlike verb sense 1, which describes the movement slowing itself.

backup — 形容詞

backup — 動詞