backboard
/ˈbækbɔːd/noun
1- a board placed at or forming the back of something, such as a collage or piece of electronic equipment托板; 垫板。
1.1
- a board used to support or straighten a person's back, especially after an accident脊椎矫正板。
1.2
- Basketball an upright board behind the basket, off which the ball may rebound【篮球】篮板。