each of的用法其后接的名词或代词必须是复数，而不能是单数；其后所接名词必须要有冠词、物主代词、指示代词等之类的限定词修饰。
Each of the houses was slightly different.
每座房子都稍有不同。
Our host shook each of us warmly by the hand.
主人热情地和我们每个人握手。
Each of the factors is given a weighting on a scale of 1 to 10.
每种因素按1至10之间的数值加权。
