age可数吗?the middlle ages 为什么加S?

age可数吗?the middlle ages 为什么加S? age可数吗? age,victory,result可数吗? age 是不是可数名词? The Olympic Games 可数吗 the whole class 可数吗 bill started drawing（）five A,in age B,at age of C at the age of D ,when age是可数还是不可数名词?what's the age of you?还是what's the ages of you?our age are.还是 our ages are.这有什么不同?给我讲讲 at the age of与at a age of的区别 a little wind可数吗 the elderly和the police可数吗 求翻译the age difference plays a part in friendship people of the same age as you （a noun） at the same age 和 of the same age 的区别?Mille and Sure are _____ the same age.A.in B.at C.of D.with After the age of 不好意思！应该是After the age of sixty，the average sleep house are……a night a great deal about the age and size of the universe.为什么用about?不用of? 或能省略吗? could you ride a bike at the age of five?____you____ ____ride a bike at the age of five. force可数吗书上说的是a force that keeps us from floating in the the air.这么说可数啦?