在两个小时以内是in two hours还是for two hours?

在两个小时以内是in two hours还是for two hours? 两个小时之内是for two hours 为什么不是in two hours? 持续两小时用英语怎么说last for two hours还是last two hours? in two hours 和for two hours的区别 tow hours在什么情况下用for two hours "步行两小时的路程",英文是"two hours' walk"还是"a two hours' walk"?这里的"a"应 用英语怎么说 两小时的路程?是two hours’drive还是two hour’s drive we will leave for Shanghai in two hours.对in two hours提问.（）（） two hours 火车在这里停留了两个小时 the train has been here for two hours中不能用stop I have math for two hours对画线部分提问(划线部分是for two hours ) in two hours 和in two hours' time的区别