注意是：one and half 和 one and a half区别注意是：one and half 和 one and a half．他们有什么区别吗?

注意是：one and half 和 one and a half区别注意是：one and half 和 one and a half．他们有什么区别吗? The W.H.O.says about two and one-half percent dietwo and one-half percent 是百分之几? one and one-half billion和one and a half billion那一句常用啊 one month and a half和one and a half month有区别吗?还有one hour and a half和one and half an hour哪个对? half的用法是 one and a half years 还是one and a half year?half具体的用法? one and a half one and a half hours 和 one hour and a half的意思一样吗 one year and a half 和 one and a half years thanks! 是one and a half hours还是one and a half hour 是one and half hours还是one and half hour?RTRT! 是one and a half hour 还是 one and a half hours 一个半小时 英语：是one and a half hour 还是 one and a half hours 英语翻译是one and a half hours还是one and half an hours还是其他? one and one-half percent是百分之几 一天半 的英文是one and a half days还是one and half days 那1.5 是one and a half 还是one and half一天半可以译为one day and a half吗 half an hour?half an hour、an hour and a half 、 one and a half hours和one half hour都能表示一个半小时吗? One and a half an hour 和An hour and a half 有什么不同 one year and a half和a year and a half哪个正确