後備

后备
hòubèi
reserve; backup

CEDICT

Entry Composition

1 後 hòu
  1. back
  2. behind
  3. rear
  4. afterwards
  5. after
  6. later
  7. post-
2 備 bèi
  1. (bound form) to prepare; to equip
  2. (literary) fully; completely