一双运动鞋英文sports为什么要加s

一双运动鞋英文sports为什么要加s sports shoes的sports为什么要加s sports star为什么sport 要加S 翻译：昨天彼得的爸爸给他买了一双运动鞋 Peter's father__ __a pair of sports shoes yesterday 有一双运动鞋用英文怎么说十万火急 有一双运动鞋,用英文怎么说十万火急 运动鞋的英文词组sport后面用不用加s? 昨天皮特的爸爸给他买了一双运动鞋.Peter's father ___ ___a pair of sports shoes yesterday. sports star eats well为什么eat要加s sports makes me happy为什么make要加s? He loves sports.的loves为什么要加s? Does she play sports every day?为什么这句话中的sports要加S sue plays sports every day 为什么plays sports加s a pair of sports shoes中的sports为什么加s 为什么sports show 的sports要加“s”?如：my ciassmates like game shows and sports shows? Sonia Hall has a sports collection.为什么要加s为什么Sports要加,collection为什么不加请说详细点。 She plays sports every dayplay后面为什么要加S?什么情况下加S? He has a great sports collection collection为什么不加S sports为什么加S