是TWO HUNDRED 还是 TWO HUNDREDS ?

是two hundred还是two-hundred 是TWO HUNDRED 还是 TWO HUNDREDS ? two hundred 后要不要加s啊?是two hundred 还是two hundreds? Each of us has to write a two-hundred-wor是two-hundred-word 还是two-hundred-words 200是two hundred还是two hundreds啊 2800的英语是two thousand eight hundred 还是two thousand and eight hundred ? hundred后面可以加s吗例如：one hundred,那到底是“two hundred”,还是“two hundreds”呢? 表示年龄的英文如果说年龄.是 two hundred years old 还是 two hundred year old 呢.为什么. 1200的英语是one thousand two hundred还是one thousand two hundreds? 是two hurdred还是two hundreds最好详细介绍一下hundred 两百人 是说 two hundred people 还是 two hundred persons?是 how many people 还是persons are there in the park 一张100元的纸币是a hundred-yuan note,a one-hundred-yuan note还是 a one hundred-yuan note,哪个对?一个200元的书包是a two-hundred-yuan bag还是a two hundred-yuan bag.two与hundred之间用不用连字符. 一张100元的纸币是a hundred-yuan note,a one-hundred-yuan note还是 a one hundred-yuan note,哪个对?一个200元的书包是a two-hundred-yuan bag还是a two hundred-yuan bag.two与hundred之间用不用连字符. two hundreds students还是two hundred of students two hundreds of students还是two hundred of students “一封200字的信”用英语怎么说?注意我说的是要用连字符的形容词是a two-hundred-word letter 还是a two-hundred-words letter? “ a ￡200 donation ” 该怎么读?如题,是应该读成 a two-hundred-pound donation 还是 a two hundred pounds' donation 关于percent我知道90%读作 ninety percet那么有不有200%,two hundred percent,这种读法呢?如果有的话,是读two hundred percent还是two hundred percents?如果知道的话告诉我~谢谢了!