an hour and a half one and a half hour 请及时采纳,多谢! 再问: 那么 如果是two hour要不要s? 再答: 要 two hours 再问: 两种都要? 再答: 更正:one and a half hours 一个半小时也要加s 再问: 那 two hours and a half 对还是错? two and a half hours对还是错? 再答: two hours and a half 对 two and a half hours对 两种都对。不过都不是一个半小时的意思,而是两个半小时。