half of students为啥不说a half of

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half of students为啥不说a half of
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half of students为啥不说a half of
half of students为啥不说a half of

half of students为啥不说a half of
half of students... 学生的一半.
没有说a half of ..只有 half of a ...
但是 half of a student 就是说一个学生的一半,就不对了.

为什么要说?

half在这里作限定词(determiner)
表示an amount equal to half of something/somebody。另如:
half an hour
Half of the money was mine.
在a half中,half作名词(noun)
表示 either of two equal parts into which ...

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half在这里作限定词(determiner)
表示an amount equal to half of something/somebody。另如:
half an hour
Half of the money was mine.
在a half中,half作名词(noun)
表示 either of two equal parts into which something is or can be divided。另如:
two and a half kilos (2½)
One and a half hours are allowed for the exam.
这些词典上都有。还想知道更多例句的话,可以自己再去翻下词典哦,呵呵。

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