in an hour的意思是什么

造句：

1. Happy things are always so fast, blink of an eye an hour passed, we had to reluctantly left the bamboo forest.

   快乐的事总是这么快，一眨眼一小时过去了，我们只好依依不舍的离开了竹林。

2. I prepared review materials, water and food an hour earlier and took the bus to my classmates' home.
   

   我提早一小时准备好复习资料，水和食物并坐上去同学家的公交车。