backed up

英 美
  • adj.毒品麻醉的
  • backed adj.有背的;有支持的动词back的过去式和过去分词形式.
  • up adv.向上;起来;上升;往上prep.向上adj.向上的;上行的n.上升v.上升;增加
动词 back up:
  1. give moral or psychological support, aid, or courage to

  2. move backwards from a certain position

  3. establish as valid or genuine

  4. make a copy of (a computer file) especially for storage in another place as a security copy

  5. become or cause to become obstructed