squash ball

US /ˈskwɑːʃ bɔːl/
UK /ˈskwɑːʃ bɔːl/
"squash ball" picture
1.

壁球

a small, hollow, rubber ball used in the game of squash

:
He hit the squash ball with great force.
他用很大的力气击打壁球
The squash ball bounced off the wall.
壁球从墙上弹了回来。