billiard ball
US /ˈbɪl.jɑːrd bɔːl/
UK /ˈbɪl.jɑːrd bɔːl/

1.
檯球, 撞球
a small, hard, spherical ball used in games like billiards, pool, or snooker
:
•
The cue ball struck the eight billiard ball with precision.
主球精確地擊中了八號檯球。
•
He polished each billiard ball before the game.
他在比賽前擦亮了每一顆檯球。