on-hour one-hour ride

on-hour one-hour ride a one -hour还是an one-hour in one's hour brush one’s hour a half hour one hour对不对? （ ) one hour 填什么?at for in on? 0.8hour 1hour 1.5hour one and half hour 哪些要加0.8hour 1hour 1.5hour one and half hour 哪些要加s 冠词 an one-hour 还是a one-hour 是a one-hour ducumentary还是an one-hour documentary One hour ago 和one hour later.有什么区别? eight times in one hour was just one hour from one hour 的意思是什么? every hour on the half an hour one houran hour 与one hour的区别是什么 one past half hour 中的“hour”要不要加“s”? more than one hour和more than an hour区别 one and a half hour 中hour是否加s