back up

基本解釋

• v. 支持，援助；（資料）備份；倒退；裱；堵車

同根派生

• back up相關詞

英漢例句

用作不及物動詞 (vi.)

• Because congestion prevents ships heading back to pick up new cargoes, it has helped to push prices up further.
  由于擁堵使船只難以返回運載新的貨物，起到了進一步推高價格的作用。
• Some drivers will switch to the bridge to shorten theircommute, but as the traffic builds up there the motorway starts to look like abetter bet, so some switch back.
  一些司機為了縮短行程選擇走橋，但當橋上變得擁堵時，高速路似乎是更好的選擇，因此一些司機又折返回來走橋。
• The fire won't burn because the flue is blocked up.
  因煙道堵塞火燒不起來。
• Clogged pipes backed up drain water.
  阻塞的水管堵塞了溝水。

用作及物動詞 (vt.)

• She has almost nobody to take up for her.
  她幾乎沒有人支持。
• The people are at the back of the government.
  人民是支持政府的。

• back up更多例句

詞組短語

短語

• back -up galvanometer 輔助檢流計
• center back ride up 后中起吊
• weld back -up 焊縫背墊
• Back -up tongs 內(nèi)鉗
• backup and recovery 備份與恢復

• back up更多詞組

英英字典

柯林斯英英字典

• If someone or something backs up a statement, they supply evidence to suggest that it is true.
• If you back up a computer file, you make a copy of it that you can use if the original file is damaged or lost.
• If an idea or intention is backed up by action, action is taken to support or confirm it.
• If you back someone up, you show your support for them.
• If you back someone up, you help them by confirming that what they are saying is true.
• If you back up, the car or other vehicle that you are driving moves back a short distance.
• If you back up, you move backward a short distance.
• When a car backs up or when you back it up, the car is driven backward.
• &rarrsee also backup

• back up劍橋字典
• back up柯林斯字典

專業(yè)釋義

體育

• (球員)給…補位，后退補位，跑到(本隊球員)背后策應；接應：

計算機科學技術

• 作(數(shù)據(jù)文件的)備份，把…備份，制作(…的)后備軟盤，備份復制，后備復制(數(shù)據(jù))

交通運輸工程

• 拉緊(帆索未系住的一端)：

印刷、復印技術

• 印(一印張的)反面

動力與電氣工程

• 支持

電子、通信與自動控制技術

• 備用
• 備用設備