是one and half hours还是one and half hour?RTRT!

英语翻译是one and a half hours还是one and half an hours还是其他? 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 one hour and a half 是一个半小时 两半小时是不是 two hours and a half? one and a half hours 还是hour one hour and a half作主语谓语是单数还是复数?one and a half hours呢? 对 one and a half hours 提问句子是 It takes me one and a half hours to do my homework? how often的答句可以是one and a half hours a day吗. 一个半小时的英文是one and half hours 为什么错了? one and a half hours 和 one hour and a half的意思一样吗 one and a half hours还是one and a half hour one and a half hours?还是one and a half hour? one and a half hours 的同义词组帮 The meeting lasted for ( ).A.one and half a hour B.one and half hour C.one and a half hours D.one and the half hour The boy always stays there for___a.one and half hour b.one and a half hour c.one and half hoursd.one and a half hours 一个半小时英文怎么说到底是one and a half hour还是one and a half hours 哪个正确,还是都对?到底要不要加S?