因为它是个体名词，故为可数名词，复数形式是races，中文意思是n. 竞赛（race 的复数形式）赛马会

He believes in the separation of the races.

I run so well I'm planning to enter some races.

Europe will be represented in all but two of the seven races.7场比赛中除了2场之外， 都将有欧洲的代表参加。