弓背

gōngbèi
  1. to hunch over
  2. to stoop
  3. to arch one's back (upward)

CEDICT

  1. 弓的背面。
  2. 弯着背。
  3. 比喻弯曲的路。

重編國語辭典

Entry Composition

1 弓 gōng
  1. a bow (weapon)
  2. to bend
  3. to arch (one's back etc)

classifier: 張
2 背 bèi
  1. the back of a body or object
  2. to turn one's back
  3. to hide something from
  4. to learn by heart
  5. to recite from memory
  6. (slang) unlucky
  7. hard of hearing

Related entries

弯腰 wānyāo to stoop
俯 fǔ
  1. to look down
  2. to stoop
俯身 fǔshēn
  1. to lean over
  2. to bend over
  3. to stoop
  4. to bow
我俯身撿起了掉在地上的筆。

I bent over to pick up my pen which had fallen on the floor.

Source: Tatoeba

挺腰 tǐngyāo
  1. to straighten one's back
  2. to arch one's back