two and a half

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/07/16 10:50:51

two and a half
是2+6=8个吗

dozen 是一打,12个
2.5*12=30个
再问：为什么啊?还是不懂 a half dozen不就是12的一半6吗？这里的乘号哪来的还有2.5哪来的
再答： (two and a half) dozen 前面的量词要连起来看，才是总的量。等同于 two dozens + a half dozen 这个跟数学有关： (two + a half) dozen = 2.5 dozens = 2.5 * 12 = 30 解释下，two and a half dozen，这里之所以用dozen而不是dozens，是因为单复数形式取决于最靠近它的量词，这里是a half
再问：是不是说 two and a half dozen就是two dozens + a half dozen？那就直接24+6=30就可以了呀
再答：是的，也可以这么算，都一样。

two and a half two hours and a half 关于two and a half man Two And A Half Men中文翻译 some two-and-a-half years and two novels later,^^^^^^ two years and a half=two and a half years吗? two and a half hours' walk可不可以说two hours and a half's walk - years ago ,I came to the USA.Two and a half Two and half a two years and a half 还是two year and a half two and a half hours与a half and two hours哪一个对? two years and a half 或者two and a half years two and a half 和 three and a quarter