dozen 的用法

dozen 一打 12
dozens of 几十个 很多
dozen 前有具体数字时 或有a many several 修饰时 dozen 不加s.
如 three dozen egges.
所修饰的名词 有these 或是代词时 dozen 后加of
如 three dozen of these egges
three dozen of them
http://englishclass.blogdriver.com/englishclass/55560.html

dozen
[`dEJzEn]
n.一打, 十二个

dozen
duo2+zen10
[5dQz(E)n]
adj, n
dozen 或 dozens
一打，12个
I want a dozen of pencils, please!
劳驾，我要一打铅笔。（缩写为： doz)

dozens of
许多
There were dozens of people there.
那里有许多人。

dozen
AHD:[d緕搮n]
D.J.:[6d(z*n]
K.K.:[6d(z*n]
n.abbr:doz.abbr:dz.
pl. dozen;
A set of 12.
dozens
An indefinite, large number:
dozens of errands to run.
dozen
adj.
Twelve.

Middle English dozeine
fromOld French dozaine
fr