backup
英['bækʌp]
美['bæk,ʌp]
- n. 支持；后援；阻塞
- adj. 支持的；候补的
- vt. 做备份
英英释意
- 1. an accumulation caused by clogging or a stoppage;
- "a traffic backup on the main street"
- "he discovered a backup in the toilet"
- 2. someone who takes the place of another (as when things get dangerous or difficult);
- "the star had a stand-in for dangerous scenes"
- "we need extra employees for summer fill-ins"
- 3. a subordinate musical part; provides background for more important parts
- 4. (computer science) a copy of a file or directory on a separate storage device;
- "he made a backup in case the original was accidentally damaged or erased"
- 5. the act of providing approval and support;
- "his vigorous backing of the conservatives got him in trouble with progressives"