A1 [ C ] any object in the shape of a sphere, especially one used as a toy by children or in various sports such as tennis and football球；球状物

A1 [ C ] a long piece of thread that has been rolled into a ball线团

[ C ] the rounded part of your foot or thumb where the toes join the foot and the thumb joins the hand拇指球；大脚趾球

in football, a pass from one player to another（足球的）传球

in baseball, a ball that is thrown to the batter but that the batter does not try to hit because it is outside the hitting area（棒球的）坏球

[ U ] mainly US any game that involves throwing and catching a ball（任何形式的）球赛

[ C ] a large formal occasion where people dance舞会

to make something form a closed round shape把…做成球形

US slang (of a man) to have sex with someone性交，交媾