关于dozen的复数是否加词尾-s的问题比较复杂,大致原则是：1.当它与具体数字连用时,既不加复数词尾-s,也不后接介词of.2.当它不与具体数字连用,而是表示不确定的泛指数时,则不仅要加复数词尾-s,而且要后接介词 of,此时可将dozens of(许多,几十)视为习语.如：I’ve been there dozens of times.我去过那儿几十次.She’s got dozens of boy-friends.她的男朋友很多.下面一例中的dozens加了复数词尾-s也属为似情况：Pack them in dozens.按打装袋吧.3.当与 a few,several 等数目不很具体的e="FONT-SIZE:10.5pt; FONT-词连用时,加不加复数词尾-s均可,但需注意：不加复数词尾-s时,其后的介词of可以省略；加词尾-s时,其后介词 of不能省略.如：several dozen (of) pencils=several dozens of pencilsAMILY:'Times New Roman'">several dozen (of) pencils=several dozen几打铅笔注：英语较少使用many dozen的说法,要表示类似意思可用dozens of.4.当它后面的名词受 the,these,those 等特指限定词修饰时,或其后的接的是us,them这样的人称代词时,则此时必须用介词 of.如：two dozen of these eggs 两打这种鸡蛋three dozen of them 它们中的3打注：score,hundred,thousand,million等也具有以上类似用法.
dozen 意为“一打”“十二”，可做名词，也可做形容词。例：I want a dozen of sticks. 我要一打棍子。（做名词）I want a dozen sticks. 我要一打的棍子。（做形容词）dozens of 意为“几十的”“几打的”，做形容词，后面一定要接名词或代词。例：There are dozens of birds in the sky. 天空中有几十只鸟。
dozen doz.en[`dʌzn; ˋdʌzn]《源自拉丁文“十二”的意思》名词(pl. ~s)1 (C)打,十二 (个) [of]two [several] ~ of eggs两 [几] 打蛋She bought two ~ of them.她买了两打那东西five ~ of these eggs [the eggs over there]这些蛋中 [在那边的蛋中] 的五打蛋some ~s of eggs几打蛋pack bottles in ~s按打包装瓶子How much are those apples a ~?.那些苹果一打多少钱?→ baker's dozen,long dozen,daily dozen.2 (口语)a. [a ~]大约一打 [十二,十三] 的数量,相当多[of]b. [~s]几十,多数[of]~s of people几十人,很多人I went there ~s (and ~s) of times.我去过那里几十次by the dozen(1) 按打,论打sell by the ~论打出售(2) 很多地; 数以打计地talk [speak] nineteen [twenty,forty] to the dozen(英)说个不停,喋喋不休形容词(无比较级、最高级)打的,十二 (个,人) 的a ~ apples一打 (的) 苹果five ~ eggs五打 (的) 蛋some ~ people为数约十二个人half a ~ bottles = a half ~ bottles六瓶
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