backing up

动词 back up:

1. give moral or psychological support, aid, or courage to
   同义词：support, back up
2. move backwards from a certain position
   同义词：back up, back off, back down
3. establish as valid or genuine
   同义词：back, back up
4. make a copy of (a computer file) especially for storage in another place as a security copy
   同义词：back up
5. become or cause to become obstructed
   同义词：clog, choke off, clog up, back up, congest, choke, foul

1. Will you back up my plan?
   你会赞成我的计划吗?
2. External hard disks can be purchased alone and then attached to the microcomputer with cables; they are used for backing up large amounts of data or for additional storage capacity.
   内部硬盘永久性地安置在微机内，只有需维修或更换时才取出。外部硬盘可以独立购买，通过电缆线与微机相连。