sport与 sports 有何区别?

问题描述:

sport与 sports 有何区别?
如果说某个项目,应该说sport还是sports.
A sport such as volleyball还是
A sports such as volleyball

sport可做名词 eg:Football is my favourite sport.
或动词 eg:Lambs were sporting in the field.
sports则可做名词或形容词
本题当然是A sport such as volleyball,因为sport是单数嘛.