a hundred对还是hundreds of对

a hundred对还是hundreds of对 FIVE HUNDRED对 还是 FIVE HUNDREDS对 Hundred of ,A hundreds of a few hundred people 还是 a few hundreds of people many hundreds of 还是many hundred many hundred还是many hundreds of 是many hundred of 还是many hundreds 区别几个英文词组1.hundred,a hundred,hundreds,hundred of,hundreds of, hundred hundreds hundreds of hundred of hundreds,hundreds of,hundred,hundred of hundred ,hundreds,hundred of,hundreds of... hundred/hundreds of