hundreds of和 hundreds的用法00

hundred是表示确切的数字时用的，后不能加s。比如"300名老师"：three hundred teachers."500本书"：500 hundred books.
hundreds of 是用来表示不确切的数量时用的，比如“几百，好几百”等。“我们学校有几百个老师”：There are hundreds of teachers in our school.

The plural form is hundred after a number, or after a word or expression referring to a number, such as ‘several’ or ‘a few’. 用在具体数字后，或跟在 several 或 a few 等表示某一数目的单词或短语后时，复数形式为hundred。
Hundreds of tree species face extinction...许许多多树种濒临灭绝。
Hundreds have been killed in the fighting and thousands made homeless.很多人在战火中丧生，更多的人则落得无家可归。
I agree with you one hundred per cent.我完全同意你的话。

1、hundreds of,用来表示含糊的数目.
如hundreds of books,成百本书；hundreds of soldiers,数百名战士.
2、没有hundreds.表示准确数目时hundred不加s.
如two hundred trees,两百棵树; four hundred students,四百名学生.