TWO HUNDRED OF和 HUNDREDS OF

TWO HUNDRED OF和 HUNDREDS OF hundreds of people和two hundred of people的不同 two hundred,two hundred of.hundreds of的区别 two hundreds of students还是two hundred of students hundred hundreds hundreds of hundred of hundreds,hundreds of,hundred,hundred of hundred ,hundreds,hundred of,hundreds of... hundred of和hundreds of的区别? two hundreds students还是two hundred of students hundred/hundreds of hundred和hundreds of的区别 英语：“two hundreds of”与“two hundred”、“hundreds of”等等这些类似的有什么区别