两个半小时是two and a half hours?two hours and a half?hour后有s吗

请问“两个半小时”是“two and a half hour”还是“tow and a half hours”? 两个半小时是two and a half hours?two hours and a half?hour后有s吗 one hour and a half 是一个半小时 两半小时是不是 two hours and a half? 两个半小时除了可以说two and a half hours 还可以说什么 2个半小时用英语说应该是two and half an hours,还是two and a half hours? 一个半小时 英语：是one and a half hour 还是 one and a half hours two hours and half a hour 2个半小时 这种表达对吗 “2个半小时”用英语怎么表示?two and a half hours除了这种,还有一种表达方式是什么? Two And A Half Men中文翻译 He has been there for__A two and a half month B two and a half months C two and the half months D two and half a month - years ago ,I came to the USA.Two and a half Two and half a Two a half Half and two The huge elephent weights____.A two tons and a half B.two and a half ton C.half and two tonDtwo ton and a half two hours and a half two and a half hours有什么区别 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 two and a half hours与a half and two hours哪一个对? 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? There are two and a half hours left.为什么填two and a A.halfB.two halvesC.half an D.two and a half