二十几个是two dozen of 还是two dozens of

1.一打,十二个〔作为实数及作修饰语时,复数不加 s〕.x0d2.〔dozens〕 若干,许许多多.x0dtwo [three] dozen eggs 两[三]打鸡蛋.four dozen of these eggs 四打这种鸡蛋.some dozens of eggs 好几打鸡蛋.dozens of eggs 几十个鸡蛋.some dozen (of) eggs 一打左右鸡蛋.a dozen of eggs 一打鸡蛋.sell eggs by the dozen 论打售蛋.pack oranges in dozens 按打包装橘子.a round dozen 整整一打.a baker's [devil's,long,printer's] dozen 十三个.dozens of times 屡次.(talk) thirteen [nineteen] to the dozen 〔英俚〕 1.(说个)不停.2.(说得)过分地,迅速地.